Statistics and Probability questions and answers in March 2023 — Page 7

 . (3.b) Stochastic System Modeling. n a network node represented by an W/M/1 model, the incoming packet rate is 2 = 1,000 packets per second (p/s) and the service rare is # = 5,000 p/s.. (3.b.iii) (...
 . (3.a) (7 points) Random Signal Processing. Consider a special type of a random signal whose sample random values x vary only between -2 and 1 as shown below. The samples are modelled by a random v...
Define the null and alternative hypotheses in mathematical terms as well as in words. Done in Python Identify the level of significance. Include the test statistic and the P-value. (Note that Python m...
Question 01  The number of customers waiting for gift-wrap service at a department store is an rv X with possible values 0, 1, 2, 3, 4 and corresponding probabilities 0.1, 0.2, 0.3, 0.25, 0.15. A ran...
question a) Scales have been administered to eleven individuals measuring their job satisfaction and the prestige of their occupations. Higher scores indicate greater satisfaction and more prestige. C...
Causal Inference is when a researcher attributes something happening, to something else, and assumes that in the future the same thing will happen because they infer that A CAUSES B. They use a statis...
The physical plant at the main campus of a large state university receives daily requests to replace florescent light bulbs. The distribution of the number of daily requests is bell-shaped and has a m...
Each team member needs to collect 20 samples of each population of any variable and determine which one has a lower average with an alpha of 5%. MINITAB for Z-TEST The numbers I wanted to use are the ...
 . 72. Show that I X; and _X; are sufficient statistics for the gamma distribu- tion.. 3. 8.72. Also, on page 308 & 309 of the textbook, please find the definition of exponential family. Now cons...
 . 50. Let X1, ..., X, be an i.i.d. sample from a Rayleigh distribution with parameter 0 > 0: f ( x |0) = e -x2/ (202 ) A2 x20. 2. For 8.50 and let 1 = 02 > 0. (a) provide a sufficient statisti...
1. Two fair dice are rolled at the same time. Find the probability of getting (a) both the same number (b) one even and one odd number (c) the sum of the two numbers more than 8. 2. Of the 200 student...
   . Ho: H S 3.0. Ha: H > 3.0 - 3 represents the asking price/cost per name. The following hypothesis test is relevant to Performance Tires, because it helps us to decide if buying the mentioned ...
Question 5     Question 6     Question 7     Question 8     Question 9     Question 10     Question 11     Question 12     Question 13     Question 14     Please solve these and wh...
 . A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 410, 470 ). Assume that this result is based on a sample of size 20 . 1) What is the value of t...
w many employees were studied?     b. What is the midpoint of the first class? (Enter the answer in thousands. Round your answer to 1 decimal place.)  . The following frequency distribution reports...
 . your thinking at a = 0.05? An education rehearser claims that at most 5% of working college students are employed as teachers or teaching assistants. In a random sample of 400 working college stud...
 . D Question 22 28 3 pts The correlation between salary and years of education is 0.45. The data had 18 observations, For the hypotheses Ho: rho = 0 versus Ha: rho does not equal zero, what is the t...
A marketing research professor is conducting a telephone survey and needs to contact at least 160 wives, 140 husbands, 110 single adult males, and 120 single adult females. It costs $2 to make a dayti...
Random samples of three brands of gasoline gave the performance scores (MPG) shown in the table. Brands were randomly assigned to cars with other conditions of the experiment were maintained as unifor...
 . Festival/Even PIA.. F FORMAL DRESSES Wedding G 1.23 million OF 1,230,080 D Question 27 3 pts Twenty three homes that were for sale in Aimes, lowa in 2010 were randomly selected. A regression model...
Need help. 5. The table below shows the result of a survey in which 2000 students were asked how they voted in the 2016 Presidential Election. (Find probabilities to four decimal places.) Voted for T ...
 . c - Grammarly S Festival/Event Pla... F FORMAL DRESSES Wed Question 14 3 pt Listed below is the multiple regression equation for predicting Y by X1 through X4. Y = College GPA X1= High School GPA ...
If the Pearson correlation is measured between two variables X and Y and was - 0.54. This indicates that:    Select one:a. X and Y medium correlation, and if X increases, Y will increase generallyb....
1- The repair time for air conditioning units is believed to have a normal distribution with a mean of 38 minutes and a standard deviation of 12 minutes. Find the probability that the repair time for ...
 . Len just wrote a multiple-choice test with 15 questions, each having four choices and each question is worth 1 mark. Len is sure that he got exactly 9 of the first 12 questions correct, but he gue...
 . 2. Multiple Continuous Random Variables. For the two continuous random variables X and Y, the joint PDF is defined using the following instructions: 2 = y 0 S y S x S 1 fuu'y) { 0 otherwise (La) (...
 . Sample Space Instructions: Find the number of possible outcomes in the sample space. You flip a coin once. X. Calculate Combination or Permutation Instructions: Determine if the following is a com...
How many employees accumulated less than 4,000 miles?     b. Convert the frequency distribution to a cumulative frequency distribution.   c. Outside of Connect, portray the cumulative distribution ...
 . A teacher gives her students the same test at the beginning and end of the week. She wants to know if their scores increase over time. The summary statistics that she has collected are below. Cd =...
 . An instructional designer wants to know if employees' knowledge of their company increases following their newly developed online training program. They have a sample of 40 employees. Each employe...
Alvin is collecting data for his senior thesis, which focuses on the impact of his university's COVID policies on students' academic performance. He asks his mates in his fraternity and sports team to...
Briefly describe the normal distribution. List and briefly elaborate on the four properties of the normal distribution. (5 points)   Prudence is currently working on her senior thesis as part of her ...
While researching lifestyle changes to improve heart health, you come across a research article reporting that men consume significantly more calories each day than women, t(50)=2.993, p < 0.05. Ba...
 . The frequency distribution in the table represents the square footage of a random sample of 501 houses that are owner occupied year round. Approximate the mean and standard deviation square footag...
 . The frequency distribution in the table represents the square footage of a random sample of 501 houses that are owner occupied year round. Approximate the mean and standard deviation square footag...
The Excel file STATISTICSSTUDENTSSURVEYFORR contains the column BEFPULSEMIN (a numerical variable that measures student pulses before completing an online survey). For education purposes, consider thi...
A random sample of 100 students is taken from a larger population of students in a multi-lecture course and the sample mean (average) of their final grades is 66. Suppose it is known that the populati...
 If a data sample of standing height of U.S. males is done and shows a 95% confidence interval with a lower limit of five feet four inches tall and upper limit of 6 feet four inches tall, what is: Th...
1a. How many significant relationships are there with intention to use condoms?   1b . Name the significant variables and β (beta).    1c. Which variable has the strongest relationship with inter...
If you had a 1,500 square foot house, based on the regression equation in the graph, what price would you choose to list at?  . Median Listing Price & Median Square Footage $400,000 $398,000 y = ...
Question 1 - Kolzak Appliance Outlet just received a shipment of 15 TV sets. Shortly after they were received, the manufacturer called to report that he had inadvertently shipped 5 defective sets. Ms....
Please explain and show the work for the problem   1. The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. The probability of a play...
The price of 30 random foods were compared between two different superstore chains. The prices for the products are shown in the accompanying data table. Complete parts (a) through (c) below. Click th...
 . D Question 15 3 pts What is the null hypothesis for the Durban Watson Test? O Ho: All of the slopes equal zero. Ho: The Data is not autocorrelated Hoc The Data is autocorrelated Ho: At least one o...
Find p value critical values. The null hypothesis is Ho: My - H2 and the alternative hypothesis is as Observations from specified. The provided data are from a simple random paired sample from the Pai...
Find p value and critical values aswell. Do social recommendations increase ad effectiveness? A study of online video viewers compared viewers who arrived at an advertising video for a particular bran...
Could you please explain and show the work to how you got your answer   The travel time for a college student traveling between her home and her college is uniformly distributed between 40 and 90 min...
Saeko owns a yarn shop and want to expands her color selection . Before she expands her colors , she wants to find out if her customers prefer one brand over another brand . Specifically , she...
A researcher is studying the average cost of traveling for a college student. As part of their research, they would like to learn more about the yearly average money spent to travel to and from home b...
Question 1:   Using a TI-84 Plus calculator, find the area under the standard normal curve to the right of the following z -values. Round the answers to at least four decimal places.   (a) Find the ...
QUESTION 11 An expert witness for a paternity lawsuit testifies that the length of a pregnancy is normally distributed with a mean of 280 days and a standard deviation of 13 days. An alleged father wa...
Question 1:   How secure is your job? In a survey, employed adults were asked how likely they thought it was that they would lose their jobs within the next year. The results are presented in the fol...
If you were Scope and could choose only one of these markets as your spot or heavy up market, based only on CDI/BDI which one would you choose?   . The purpose of this in-class activity is to make y...
 . >arima.sim(n=100,list(ar=c(1.5,-0.75), ma=c(0.3)) ) # n=100 observations from X(t)-1.5X(t-1)+0.75X(t-2)=e(t) +0.3e(t-1). Also, the following code was used to generate the MA(2) example. Note ho...
What is the Scope BDI for each of these markets?   Hometown =    Grassroots=. The purpose of this in-class activity is to make you feel comfortable with BDI and CDI. CDI/BDI is an important factor ...
A researcher is studying the average cost of traveling for a college student. As part of their research, they would like to learn more about the yearly average money spent to travel to and from home b...
Plese show all work and highlight the answer will upvote . Consider a study investigating the relationship between husband's height and wife's height in young couples. The mean height of wives (x) in...
 . Required - to be turned in (2 points) For each of the following situations, calculate the p-value and determine if Ho is rejected at a 4.5% significance level with the test statistic, -1.91. All n...
You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y s before medication: 178 111 142 134 151 ...
 . Ubisoft is a large manufacturer of video games. The Marketing Manager has hired a consultant to design a survey to determine attitudes towards the products. In addition the percentage of young adu...
 . You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: P = 0.20 Ha: p + 0.20 A sample of 500 provided a sample propor...
Last year 70% voted yes in a survey. This year a similar survey is to be taken. If p = .70 again; allowed error is . 10; and confidence interval is 90%, what is the necessary sample size rounded to ne...
In a random sample of 100 World Campus Students (i.e., trials, n) at Penn State, 27 indicated they were full-time (i.e., events). Use the information above, Minitab, and the five-step hypothesis testi...
 . You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: MS 50 Ha: M > 50 A sample of 60 is used and the population ...
 . You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: M 2 20 Ha: M < 20 A sample of 50 provided a sample mean of ...
At a candy factory, one barrel of highly experimental fluorescent pink M&M's has accidentally been emptied into the packing machine. If there were four barrels of other colors also in the machine,...
Please help me with my discussion post. Thank you   Confidence Intervals  For this forum we will discuss confidence intervals and what they mean. Initial Post Instructions: Choose a data set of fuel...
Weights of newborn babies are normally distributed with a mean of 7.2 pounds and a standard deviation of 1.3 pounds. Use this information to find the following: a) The z-score of a newborn baby who is...
 . X D21 My eMaterials - PSY-260-H4745 x + V Home x PSY-260 - Page 4.25 - Module Fo X Course Hero X * C A webtexts.com/courses/60315-thomas/traditional_book/chapters/5958436-t-tests-and-anova/pages/5...
asap and donotuse chatgpt. You are conducting a test of independence for the claim that there is an association between the row variable and the column variable. X Y Z A 27 29 33 B 38 28 24 The expect...
asap and not use gpt. You may need to use the appropriate appendix table to answer this question. Alexa is the popular virtual assistant developed by Amazon. Alexa interacts with users using artificia...
Suppose that desks shipped from a local furniture warehouse are of premium quality with probability 0.75, good quality with probability 0.05, and poor quality with probability 0.20. Each desk is indep...
 . Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per 10 million people for different countries. Construct a scatterplot, find the value of the line...
asap and solve neatly without gpt. After deducting grants based on need, the average cost to attend the University of Southern California (USC) is $29,250. Assume the population standard deviation is ...
A city police chief decides to do an annual review of the police department by checking the number of monthly complaints. If the total number of complaints in each of the 12 months were 15, 18, 13, 12...
    4. A group of 21 woman and 14 men are enrolled in a medical study. Each of them as a certain disease with probability p, independently.  It is found that exactly 5 people have the disease.  Gi...
 . Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the range, variance, and standard deviation. If another value, 7.00. is add...
How can is solve those problems?   1.- Refer to the coin-tossing game in Exercise 3.2. Calculate the mean and variance of Y , your winnings on a single play of the game. Note that E(Y ) > 0. How m...
 . The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 9 minutes. Find the probability that a randomly selected passenger has ...
A pharmaceutical firm claims to have developed a new medicine that will, with more than 80% effectiveness, reduce the stress on office workers. The medicine was used to treat a random sample of 400 of...
 . Use the data in the following table, which lists survey results from high school drivers at least 16 years of age. Assume that subjects are randomly selected from those included in the table. Drov...
 . In a clinical trial of 2190 subjects treated with a certain drug, 30 reported headaches. In a control group of 1689 subjects given a placebo, 27 reported headaches. Denoting the proportion of head...
 . Which of the following statements about probability is not true? Choose the correct answer below. O A. The probability of an impossible event is 0. O B. For any event E, 0 < P(E) <1, where P...
 . In a recent year (365 days), a hospital had 5974 births. a. Find the mean number of births per day. b. Find the probability that in a single day, there are 17 births. c. Find the probability that ...
 . Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restau...
9 32 18 15 26 y 10 20 21 16 22 a. Develop an estimated regression equation for the data of the form y = bo + bix. Comment on the adequacy of this equation for predicting y. b. Develop an estimated reg...
The normal quantile plot shown to the right represents duration times​ (in seconds) of eruptions of a certain geyser from the accompanying data set. Examine the normal quantile plot and determine wh...
 . " Courses x Introducmg ChatGPT :1 Facebook Ad Campaigning: x e Dashboard 6 C I ideas.hurnber.ca D 6 Anlme '5' Harvard @ Course Outline;Fl... O F business 0 computer-science... Free Online Cou...
 . Given a filtration (In : n 2 0), contained in o-algebra F and a stopping time N, define the stopped o-algebra by . { " f ) { u = N } Uq' UA : 6 7 7 ) = NE Show that if N < M are stopping t...
 . Using optional stopping, and martingale convergence, bound the probability that 1-d SSRW started at 0 ever crosses the line n -> a + bn for a > 0 and b E (0, 1) by -1(b)(a+1) < Pr(crossin...
donotuse chatgpt. Darryl has purchased the insurance policy from an insurance company to cover the value of his new car in case if it gets totaled for the price of $1200 per year. Darryl's car worth $...
ANSWER THE FOLLOWING QUESTIONS .  . Langolis and Roggman (1990) took photographs of numerous human faces. From these photographs, they used a computer to average the faces together to create 5 protot...
A simple random sample of 900 individuals provides 300 Yes responses.   a. What is the point estimate of the proportion of the population that would provide Yes responses (to 4 decimals)? b. What is ...
 . Critical Thinking; Communication Skills; Empirical/Quantitative Skills The following is the number of each color of M&M found in a sample bag of 280 M&M's. Red 39 Orange 58 Yellow 55 I xeb...
 . A fish story: The mean length of one-year-old spotted flounder, in millimeters, is 123 with standard deviation of 15, and the mean length of two-year-old spotted flounder is 154 with a standard de...
 . For a two tailed hypothesis test, you determine the critical value to be tcrit = 2.000 and the test score to be ttest =-1.19. Should you REJECT or NOT reject the null hypothesis? 1) Do NOT reject ...
1. The population size is 525. The standard deviation of the population is 10.8. For the sample size of 140, find the standard deviation of the sampling distribution of the sample mean (standard error...
Question Set 1: Proportion of Full-Time World Campus Students   In a random sample of 100 World Campus Students (i.e., trials, n ) at Penn State, 27 indicated they were full-time (i.e., events). Ther...
1. Suppose you are interested in testing whether a group of students from a gifted class room has a different IQ from the average high school student, who you know have an IQ on average of 100. Using ...
For this discussion post, we are going to practice finding Z and T values for sets of data. We have two scenarios to look at:  Scenario 1 - The average BMI of patients suffering from gout is known to...
 . Question 35 (1 point) Which of the following is FALSE? 0 A: Dummy variables for the seasons is an appropriate way to model seasonality O B: The Holt-Winters method can be used to capture seasonali...
 . Grear Tire Company has produced a new tire with an estimated mean lifetime mileage of 35,500 miles. Management also believes that the standard deviation is 4,500 miles and that tire mileage is nor...
 . Use the probability distribution to complete parts (a) through (d) below. The probability distribution of number of televisions per household in a small town x 0 1 2 3 CI P{x) 0.05 0.19 0.28 0.48 ...
   . Question 3 0/6 pts O 10 99 0 Details You wish to test the following claim (Ha) at a significance level of a = 0.002. Ho:p = 0.47 Ha: p > 0.47 You obtain a sample of size n = 557 in which the...
 . Professor Davis reports: "My results were not significant at the .10 level." From this we can infer that O p > .10 O Professor Davis used a = .10 and retained NULL O Professor Davis u...
 . For a sample of 16 cases, the best estimate of the population standard deviation is calculated to be 8.36. The best estimate of the standard error of the mean (for samples of size 16) is O 2.09 O ...
 . For inference about means, we need to know the value of the standard deviation of the population. We estimate its value by calculating O SS/(n - 1) O ss/n O either of the above O neither of the ab...
 . The mean percent of childhood asthma prevalence in 43 cities is 2.17%. A random sample of 33 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the ...
Hello, I need guidance on how to approach this PowerPoint presentation. Example of an article I could use to incorporate all the steps needed for this PowerPoint.      PowerPoint Presentation of Ps...
At the end of the spring semester, the dean of students sent a survey to the entirefreshman class. One question asked the students how much weight they had gained orlost since the beginning of the sch...
Is there are higher correlation between home value and square footage or home value and number of stories? O Square Footage O Number of Stories O The correlation across variables is the same. O There ...
Which answer explains why the average home value is above the median home value? $50OK $45OK SAOOK $350K $30OK $250K O There are more homes valued above the median home value than below it. O A few ou...
Need to use standard normal distribution, Central limit theorem, and standard score of the sample proportion. Q: The candy company claims that 10% of M& M's it produces are green. Suppose that the...
View the video and read the article at the Australian Bureau of Statistics web site (http://www.abs.gov.au/websitedbs/a3121120.nsf/home/statistical+language+-+correlation+and+causation). A school dist...
 . [1 mark] Soil pH refers to the degree of acidity or alkalinity of the soil. A farmer has had some trouble growing crops this season and suspects that there is a problem with the pH level of their ...
 . [1 mark] In a particular town, bedrock in the ground has a mean depth of 23 meters with a standard deviation of 8.41 meters. A gravity survey is used to determine the depth of the bedrock in an ar...
 . 5. A lotto game is set up so that 5 digits are going to be randomly drawn, independently from each other, to form a 5 digit number. Each digit can take an integer value between 0 and 9, with each ...
 . 4. Two draws are made at random with replacement from a box containing five tickets. The tickets are labeled: Z, E, B, R, A. a) What is the chance of getting a vowel (A, E, I, O, or U) at least on...
please help. Question 8 0 / 5 Pts bohn has 3 kinds of fruits to be compared and he made subjective judgment on. which fruit he likes best. like the following Banana I v k 9 What is the Consistency Rat...
There are four major types of​ blood: A,​ B, AB, and O. Suppose 39​% of a certain population has Type​ A, 8​% Type​ B, 4​% Type​ AB, and 49​% Type O blood. The blood type of a random...
I AM SICK AND NEED URGENT HELP WITH THESE QUESTIONS PLEASE SOLVE THEM IN THE FILE IF YOU CAN PLEASE https://docs.google.com/spreadsheets/d/1qDCLtwcukDkBEX5AVHx6sHqXXFa9rnBt/edit?usp=sharing&ouid=1...
(All ONE problem just split into several parts.) I provided pictures of drop down answer options for the parts that need them, please use and thanks for your time. . Assume 85% of people actually sho...
Question 1:     Video game console use: A market research company estimated the numbers of people in various gender and age categories who used a video game console. The results are presented in the...
please solve these questions in the file itself and upload it if you can. I need urgent help as I am sick. https://docs.google.com/spreadsheets/d/1qDCLtwcukDkBEX5AVHx6sHqXXFa9rnBt/edit?usp=share_link&...
 . ' 'D'AT'AhIe: sale; You may need to use the appropriate appendix table or technology to answer this question. The data on y : annual sales ($1,000s) for new customer accounts and x : number or y...
  Hi,    I totally understood how -1.459 is answered, but I need to understand more details for the critical value. Could you please explain in more detail the level of significance (ex 0.05) and c...
 . K An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 83 and in math 89. The overall Question list results on the economics exam had a mean of 70 an...
Internet Browsers Recently, the top web browser had 51.59% of the market. In a random sample of 200 people, what is the probability that fewer than 90 did not use the top web browser? Round the final ...
 . ' 'D'AT'AhIe: sale; You may need to use the appropriate appendix table or technology to answer this question. The data on y : annual sales ($1,000s) for new customer accounts and x : number or y...
 . A Week 4 MindTap ANOVA x MindTap - Cengage Learning X Cengage Learning |+ com/static/nb/ui/evo/index.html?deploymentld=5996522321531871212453615008&elSBN=97803571315968snapshotld=3380457&i...
Question 2 (1 point) It is known that the average resting heart rate for athletes is 60 beats per minute. You take an SRS of 8 runners and find their resting heart rate. Your results are as follows: 6...
For the remaining items, refer to the study and data below. You will be asked to submit your Excel file and your SPSS output files when finished. A physical education instructor was interested in stud...
 . The heights of 1000 students are approximately normally distributed with a mean of 171.7 centimeters and a standard deviation of 6.9 centimeters. Suppose 300 random samples of size 25 are drawn fr...
An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were ​$443​, ​$417​, ​$487​, and ​$219   . Compute the​ ...
Suppose you conducted an ANOVA to analyze the results of an experiment and the F value was not significant. Based on this, which of the following should you conclude?   There must have been a mistak...
A researcher was reviewing the results of one of his experiment's conditions which had N=49, M=22, and SD=6. He knew that the SD indicated that the scores within this condition could be expected to va...
 . Question 1 (1 point) Evaluate and simplify fully: 1—? Question 2 (1 point) Find the sum: -12 + 8. Question 3 (1 point) Insert the symbol < or > to make each of the following statement true...
The Director of Human Resources at a large company wants to determine if there are any irregularities in the use of employee sick leave. The number of employees on sick leave was recorded each day for...
 . The following data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degree in business administration. GPA Monthly Salary ($) 2.6 3,700 3.4 3,900 3....
 . ' 'D'AT'AhIe: sale; You may need to use the appropriate appendix table or technology to answer this question. The data on y : annual sales ($1,000s) for new customer accounts and x : number or y...
The amount of syrup that people put on their pancakes is normally distributed with mean 64 mL and standard deviation 7 mL. Suppose that 42 randomly selected people are observed pouring syrup on their ...
Q8. Candy colors in boxes were counted by company (A, B, and C). Test H0: Distribution of colors is the same using alpha and counts in DATA (Spreadsheet below) Question 8 options:   The chi square st...
Dr. Z is interested in discovering if there is a difference in depression scores between those who do not watch or read the news and those who continue with therapy as normal. She divides her clients ...
Auditors make assessments on the bases of their individual experience, the experience of others, or a combination of experiences. A study of the auditors' methods was performed. The average number of ...
 . 1. For each of the following, state whether you'd use one-sample or two-sample procedures to analyze the data, and explain why. A. A university is interested in whether there's a difference betwee...
A roulette wheel has 38 slots,38 slots, numbered 0, 00, and 1 to 36.0, 00, and 1 to 36. The slots 0 and 000 and 00 are colored green, 1818 of the others are red, and 1818 are black. The ...
 . 3. The following experiment concerned the manufacture of rolling bearings. Three factors were studied, each at a low and high setting. They were outer ring osculation (factor A), case design (fact...
 . 1. A random variable X is distributed according to a PDF function as plotted in the following figure. As shown in the figure, f(x)=0 when f(x) + x<=1 or x>=3. When x=1.2, f(x) reaches the ma...
A package-filling device is set to fill cereal boxes with a (mean) weight of 20.10 oz. of cereal per box.  Assume a normal distribution for the fills.  The production supervisor suspects that the ma...
 . The station manager thinks the station doesn't play 10 songs per hour, but he doesn't know whether the station plays more or less than 10 songs per hour. G. What are the null and alternative hypot...
 . x Question 6 a) Find the expected amount of cereal left in the box. Question 7 12.6 ounce(s) (Type an integer or a decimal.) b) What is the standard deviation? Question 8 ounce (s) (Round to two d...
SWOT analysis for this hospital 5 per section.  List (5)strength, (5)weakness, (5)opportunity, or (5)threat.  Please explain why or how each item should be included in the section. Use a sentence fo...
Write 69,000,000,000 in scientific notation. Write 69,000,000,000 in scientific notation. . . . 69,000,000,000 = (Use scientific notation. Use the multiplication symbol in the math palette as needed.)
The dataset is: data(bliss, package="faraway") For part (d), I tried the code z <- lin.pred + Del %*% (as.matrix(bliss$dead) - mu) but I got into an error saying that 'Error in as.matrix(bliss$dead...
In-Class Activity Chpt 5 | Birth Weights in America Name: 4. For each gestation period, what is the probability that a baby will weight between 6 and 9 pounds at birth? a. Under 28 weeks P( LO < x&...
The following joint frequency distribution table shows responses from a sample of 201 unionized employees on how their union president handled a recent labour action. Employees were categorized by age...
Question 7 1- higher lower 2-  larger  smaller 3-  Likely  not Likely  4- would be would not be  5- would probably never could easily  6- unlikely likely . Question 11, Section 7.1 Exercise 2 ...
I ran a descriptive statistics data analysis on excel for each variable. Can someone please help me make sense of the results for each?     Access to Technology      Mean 0.87061448 Standard Erro...
(Accuracy) Use properties of integrals and appropriate substitutions to prove the following statements. Then state the implications in terms of normal dis- tributions. a ( a ) e 2 dx = V2TT a 2TT 2 2 ...
  Question 4 options: 1 - 1.5  or 2 or 1 2-  87.5  140 80 125 102.5 117.5 132.5 95          . Suppose that job satisfaction scores can be modeled with N(110, 15). Human resource departments o...
Hello, I need help with these questions.  Thank you in advance.. Exercise 4 (16 marks) Two methods for measuring the molar heat of fusion of water are being compared. Ten measurements made by method ...
 . Question 1 Let A = {1, 3, 5, 7,9, 11, 13}. Suppose B is a set such that | B = 4. 1. What are the smallest and largest possible values of |AU B ? 2. What are the smallest and largest possible value...
Please answer all the questions I have included all the information:   1.    --------------------------------------------------------------------------------------- 2.  ---------------------------...
Hello can you please assist me with this assignment thank you!    . Suppose that a data cube consists of the three dimensions time, doctor, and patient, and one measure called charge, where charge i...
You are analyzing some data from a cross-sectional study, and your plan is to check for possible confounding by gender. You first calculate the crude measure of association, then the measures stratifi...
 . Match up the following You want to decide if a sample matches a multinomial probability distribution with Plevent Al - 0.15, P[Event () - 0.25. P(Event C) - 0.35, and P(Event D) - 0.25. Decide if ...
If sample data are taken from a population with a normal distribution, the normal probability plot will. multiple choice question If sample data are taken from a population with a normal distribution,...
 . Match up the following: Not rejecting HO does not prove HO because 1. A type 1 error is possible Rejecting HO does not prove HA because 2. A type 2 error is possible The chance of a type 1 3. Decr...
1. When do you use a t-test instead of a z-test? 2. We know in the U.S. that the population average ACT score is 22 with a standard deviation of 6. A professor believes that his introductory psycholog...
Compute for the mean and standard deviation of the table below (Table represents a population not a sample), if you were to conduct an intervention program targeting women with high LDL (LDL ≥ 130),...
I ran a chi-square test.  Below is the observed data and expected data, as well as the outputs. How can this data be intrepreted.  . (0-E)^2/E Family Income Access to Technology at home Low Medium h...
A stent for use in cardiac surgery requires a special coating. Specifications for this coating are to be at least 0.05mm but no more than 0.15mm. If the process mean is .09mm and the standard deviatio...
USA today reported that the annual death rate is 8 per 1000 people. you live in a community with 1000 people for 1 year. what is the probabilty of 10 deaths? what is the probablty of more than 10 deat...
I need help on this document please be neat and explain each step thank you for understanding.   . 4) Use the graphing calculator to randomly select 3 numbers from 5 to 15. On TI 83/84: MATH E PRB S...
 . Which of the following is a proper set of hypotheses for a test about a single population proportion? O A. Ho: P = PO Ha: P < Po O B. Ho: Po = Pa Ha: Po < Pa C. Ho: P = PO Ha: P < Po D. H...
The weights, X, of a certain type of adult sea turtle are normally distributed with mean = 350 pounds standard deviation = 20 pounds A turtle is selected at random. Let X denote its weight. Find: Ques...
Problem Set 4.1: Critical Value Criterion: Explain the relationship between k and power based on calculated k values. Instructions: Read the following and answer the questions.  Work through the foll...
 . The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online portion of an exam in a particular statistics course. Compute the mean. m...
.. The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore seasons are shown in the table below. At a = 0.10, is there enough evidence to support the claim...
  Criterion: Explain the relationship between k and power based on calculated k values. Instructions: Read the following and answer the questions.  Work through the following and write down what you...
 . In 2017, Fieldhouse Media surveyed a random sample of 2087 student athletes at colleges and universities in the United States about their use of social media, and 689/2087 = 33.0% said they have p...
 . Candy colors in boxes were counted by company (A, B, and C). Test H0: Distribution of colors is the same using alpha and counts in DATA [Click and Open}. ("3' The chi square statistic 5.8 doe...
A doctor is seeking an anti-depressant for a newly diagnosed patient. Suppose that, of the available anti-depressant drugs, the probability that any particular drug will be effective for a particular ...
 . X and Y are jointly continuous independent random variables each with mean 0, variance 1, and moment generating functions Mx (t) = My(t) = g(t). A pair of new random variables U and V are defined ...
    Petri Dish #1   Petri Dish #2 Petri Dish #3 n 20 20 20 sum(x) 673 668 841 sum(x 2 ) 17371 16728 25068 mean 33.65 33.40 42.05 Std Dev  3.60   3.49     Random samples of 20 c-elegans worms ...
8)  The tensile bond strength of a modified and unmodified formulation of bone cement is given in the table to the left.  Some values have been summarized, to speed calculations for you.  Is there ...
I need help with the last 3- thanks!. 202350 STAT-301-80 x STAT 301/307: Mod 6 x STAT 301/307: Mod 6. x WA Stat 301/307 Module : x C An experiment on me x Course Hero * + < - C webassign.net/web/St...
What is   r and what does it means, including determining the strength of the correlation the direction of the association between the two variables   Equation:  Y = 95.65*X + 157760 Best-fit value...
A social worker is concerned about the number of prescriptions her elderly clients have. She would like to maake a 99% confidence interval for the mean number of prescriptions per client with a maxim...
 . CW 19.10. CPI Table 1 gives the consumer price index (CPI) for the UK, US, France and Germany from 2009 to 2018. CPI is a measure of the change in time of the price paid by the customer for a bask...
i need to find the best estimate, margin of error, and the 99% confidence interval. . Lesson 8 WileyPLUS Questi - 112 : Math Fil Question 15 of 16 Questi Multiple Use a t-distribution to find a confi...
https://data.worldbank.org/indicator/SP.DYN.CBRT.IN   the link above represents the crude birth rate (CBR) from 1990-2017. the crude birth rate (y) and the year (x).   Data gathered is world. Did y...
28) Given the following list of criteria from Hill's guidelines for establishing causality, which is the criteria which is best met by this scenario? Some researchers argue that since HPV has been sho...
  A sample of 36 was taken from a population, with the mean of the sample being 25 and the standard deviation of the sample being 3. What is the 95% confidence interval for the mean of the population...
 . Question 13 (1 point) Mccain Foods (Canada) of New Brunswick produces frozen French fries. Suppose one line of fries has an average length of 7.62 centimeters with a standard deviation of 1.27 cen...
 . 3) Suppose you and a business partner own a chain of spas across NYC and are trying to figure out methods to increase revenue. You hire a consultant and give her access to all the data that you ha...
A sample of 35 observations is taken from a normal population known to have a standard deviation of 15.2. The sample mean is 45.4. Calculate the test statistic to evaluate the hypothesis u=49. Enter y...
i need help with this question and there is another question      . Lesson 8 WileyPLUS X WP NWP Assessment Player UI Appli X Homework Help - Q&A from Onl x M (no subject) - ginasa https://educa...
 . Question 19 (1 point) A hypothesis testing: Ho : p =0.52 HA : P <0.52. We conduct a survey with sample size n =47 and have p =0.43. With a = 0. 05, do you reject or fail to reject the Null hypo...
In a research on the entrepreneurial potential and business creation intentions of CEGEP students and graduates, we obtained the cross table following concerning the distribution of entrepreneurial po...