Statistics and Probability questions and answers in March 2023 — Page 15

8. Rebuilt ignition systems leave an aircraft repair shop at an average rate of 3 per hour. The assembly line needs four ignition systems in the next hour.   What is the probability they will be ava...
Please help me! I am struggling with statistics right now. Please provide step by step explanations so I can understand and revisit this question when it is time to review for my midterm exam. Thank y...
 . Exercise 1 (25 points). (Hardy-Weinberg.) Suppose that a particular gene occurs as one of two alleles (A and a), where allele A has frequency 0 E (0, 1) in the population. That is, a random copy o...
 . Exercise 2 (25 points). Here is the data on the blood pressure of smokers and non-smokers, from random samples: smokers (X) : 125, 136, 131 non-smokers (Y) : 127, 123, 127, 119, 123 Assume that X1...
 . If there are 4 students, each student passing statistics course or not are independent events, probability of passing is 0.6. Find the probability that: a) All of them passed Statistics course b) ...
Please EXPLAIN this and give EXAMPLES .    Frequency Bar Graphs : Summarize different categories of a single  variable • X-axis : categories (levels of your IV) • Y-axis : number of cases that ...
 . List all. (b) Complete the following probability distribution table. [Enter the exact probabilitie in fraction. Do not approximate.] t 50 75 300 P (x=t) (c) What is the probability that you earn l...
One thousand independent tosses of a fair coin will be made. Let x1, . . . , x1000 record these tosses where xk is 1 if the k th toss is a heads and xk is 0 if the k th toss is a tails. What is the ex...
 . Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient ...
Hello! I need to determine the risk of anemias that are associated with low blood folate levels in patients, so you need to identify for me whether there is evidence for any of these methods being bet...
 . Team Name Work Hours Needed Work Hours Needed Frequency Percentage Cumulative Percentage Washington Wizards 4.0 4 to 6 Charlotte Bobcats 5.0 >6 to 8 Minnesota Timberwolves 5.0 >8 to 10 Toron...
Listening to music has long been thought to enhance intelligence, especially during infancy and childhood. To test whether this is true, a researcher records the number of hours that eight high- perfo...
What was the average length of time for mechanical ventilation before unplanned extubation? INFLUENCE OF PHYSICAL RESTRAINT ON UNPLANNED EXTUBATION OF ADULT INTENSIVE CARE PATIENTS:  A CASE-CONTROL S...
A psychology department secretary notices that the average number of student complaints the department receives per week is 1.4 (μ = 1.4). He notices that the department has made some poor policy cha...
A researcher tests the null hypothesis that the mean intelligence score in the population of adult learners using the standard IQ test is μ = 100. In his sample, he identifies a 95% CI=99.1 to 102.3....
 . 1. A woman is seated beside a conveyor belt, and her job is to remove certain items from the belt. She has a narrow line of vision and can get these items only when they are right in front of her....
Hi, can you help me to solve this problem? Thank you!. 1. The random variable X has values given by the set X = (a, b, c, d}, with probabilities P = (1/16, 3/16, 1/4, 1/2}. The tree below has 4 boxes ...
 . Here are 6 celebrities with some of the highest net worths (in millions of dollars) in a recent year: George Lucas (5500), Michael Jordan (1700), Paul Mccartney (1200), J. K. Rowling (1000), David...
 . Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples. Complete parts (a) and (b) below. Male 16,18825,834 1360 7530 19,201 15,928 14,54...
It is known that 20% of people in a certain town have blond hair. You collect a random sample of size 100 from that town. Use this information for both parts.   Part 1: What is the probability that m...
 . Problem 4. Pass the Aux! You're hosting a party and need to pick music, but you aren't up-to-date with the latest tracks on the charts. So, you ask 15 of your friends to each send you a single son...
In 2018, Mike Krzyzewski and John Calipari topped the list of highest-paid college basketball coaches.† Suppose the sample below shows the head basketball coach's salary for a sample of 10 schools p...
Professor Ivy has determined that 7% of students have dyslexia the school purchase a test that can dictate dyslexia with 90% accuracy  . onetary Theory (Chicago) - See x What is the Chicago School of...
 . QUESTION 1. Let X represent the number of different professors that teach STAT 2507 during a single academic year. The probability distribution of X is given by the following probability table. X ...
A data set lists weights​ (lb) of plastic discarded by households. The highest weight is 5.28 ​lb, the mean of all of the weights is x=2.023 ​lb, and the standard deviation of the weights is s=1...
Suppose that you want to determine a rough GPA distribution at UW-Madison, by looking at the following groups: (1) those with GPA 3.5 and higher, (2) those with GPA 3.0-3.49, (3) those with GPA 2.5 - ...
Question 22 12 pts Orange Mobiles claims that the average battery life of their flagship mobile is at least 7 hours. They try to verify this claim on 50 mobiles. They find that the average battery lif...
44) What is the appropriate statistical test to assess whether there is an association between obesity status (normal weight, overweight, obese) and 5-year incident cardiovascular disease (CVD)? Suppo...
14.24 Antibiotic Resistance. According to CDC estimates, at least 2.8 million people in the United States are sickened each year with antibiotic-resistant infections, and at least 35,000 die as a resu...
28) The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and are participating in a study of risk factors for obesity. Body mass index is measured as the rat...
View History Bookmarks Profiles Tab Window Help D ~ 9 8 0 Tue Mar 7 8:30 PM Final Exam /Student/PlayerTest.aspx?testld=248342194&centerwin=yes 23 asia henderson 03/07/23 8:30 PM xam Question 19 of...
Final Exam ayerTest.aspx?testid=248342194&centerwin=yes asia henderson 03/07/23 8:29 PM Question 14 of 20 This test: 20 point(s) possible This question: 1 point(s) possible Submit test K Atranscri...
Question 14 of 20 This test: 20 point(s) possible This question: 1 point(s) possible Submit test Atranscript K Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answe...
ory Bookmarks Profiles Tab Window Help Q 8 0 Tue Mar 7 8:28 PM Final Exam PlayerTest.aspx?testld=248342194&centerwin=yes asia henderson 03/07/23 8:28 PM Question 17 of 20 > This test: 20 point(...
A pharmaceutical company wants to determine whether a new blood pressure medication, Depaulodipine they have developed is more effective than a medication developed by one of their competitors. In par...
i need help with this problem 15 on the homework   The 120 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were: 12...
Can you please solve part c.. An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range: 41...
  ----------------------  . . An indicator of the value of a stock relative to its earnings is its price-earnings ratio: the average of a given year's high and low selling prices divided by its an...
History Bookmarks Profiles Window Help O Q 8 0 Tue Mar 7 8:06 PM Final Exam udent/PlayerTest.aspx?testid=248342194&centerwin=yes asia henderson 03/07/23 8:06 PM am < Question 11 of 20 This test...
Sample size is 463 students. Standard deviation is 7.4 hours. Mean is given.. 17.28 Student Study Times. Exercise 16.19 (page 380) describes a class survey in which students claimed to study an averag...
gle Chrome 0 /PlayerHomework.aspx?homeworkld=642272546&questionld=10&flushed=true&cld=7273332&centerwin=yes Spring 23 Eric Schroeder 03/07/23 7:33 PM (? 7-2 Question 6, 7.2.7-T HW Scor...
The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been widely discussed ( Time.com ). The following random samples show the annual cost of attending pr...
/Playerlest.aspx?testld=248342194&centerwin=yes asia henderson 03/07/23 7:31 PM Question 16 of 20 This test: 20 point(s) possible This question: 1 point(s) possible Submit test Itranscript K A dat...
In a popular day care center, the probability that a child will play with the computer is 0.37; the probability that he or she will play dress-up is 0.14; play with blocks, 0.19; and paint, 0.3. Const...
Air Pollution The Environmental Protection Agency must investigate 10 mills for complaints of air pollution. How many different ways can a representative select 5 of these to investigate this week? Th...
I need the formulas needed for these please. I also would like that all formulas are shown with no cut offs please and thank you!. Females Males Test for Equality of Variances (two-tailed tst) Sample ...
st.aspx?testld=248342194&centerwin=yes asia henderson 03/07/23 7:02 PM Question 3 of 20 This test: 20 point(s) possible This question: 1 point(s) possible Submit to Rranscript Find the area of the...
I have provided the SPSS output please help with 2 a-h. Problem 2 output: Model Summary Adjusted R Std. Error of Model R R Square Square the Estimate 1 .320 103 085 5.209 a. Predictors: (Constant), GD...
 . QUESTION 3 Ungrouped and Grouped Frequency distribution tables can be used to organize raw quantitative data while Categorical frequency distribution is used for unprocessed data that can be place...
  Data from a sample of citizens of a certain country yielded the following estimates of average TV viewing time per month for all citizens 2 years old and older. The times are in hours and​ minute...
Let us find the mean Price from DATA1. Find the mean for where the customer Satisfaction was Low from Store C.  R Studio with a code   . Satisfaction Store Promotion Price Friendliness LOV 04 100 L...
Question Completion Status: Suppose a discrete random variable has the following PDF: X f(x) -5 0.22 -2 0.17 1 0.13 3 0.21 8 0.27 What is P(X < 2)? O A. 0.17 O B. 0.39 O C. 0.52 O D. Not enough inf...
I would like the formulas needed for these using excel please       . A B C D E F G H We assume the two population variances are not equal Inputs First Term Second Term Final Sample Seeded Unseede...
A sales manager collected the following data on x = years of experience and y = annual sales ($1,000s). The estimated regression equation for these data is ŷ = 81 + 4 x . Salesperson Years of Experie...
Hide Assignment Information Instructions   Below is a scenario discussed that requires the evaluation of the confidence interval for the population considered. If the mean value for the fasting blood...
 . Future scientists: Education professionals refer to sciencer technology. engineering, and mathematics as the STEM disciplines. I research group reported that 2?% of freshmen entering college in a ...
On each one, make an approximaTed 95% CI and determine whether the null hypothesis should be rejected.  . b. Ho: H = -2 x=-2.24 standard error of x = 0.73 (round your answers to 2 decimal place) The ...
 . A sociologist randomly selects single adults for different groups of three, X P(x) and the random variable x is the number in the group who say that the 0 0.087 most fun way to flirt is in person....
Please show work thank you!. The brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. A sample of 1!] tubes re...
 . QUESTION 9 Suppose a discrete random variable has the following PDF: X f(x ) -5 0.22 -2 0.17 0.13 0.21 8 0.27 What is P(X < 2)? O A. 0.17 O B. 0.39 O C. 0.52 O D. Not enough information to dete...
A study in Slovakia fit a multiple regression model relating Heights of adult females (Y, in centimeters), to  Right Foot Length (X1, in cm) and Left Hand Length (X2, in cm).   1) Obtain the least s...
The students at Middleberg School District in North Carolina have been unhappy for years over the quality of food in the cafeteria. Within the school district, there are a total of 50 schools: 25 elem...
Can you solve this step by step. A random sample of n = 25 individuals is selected from a population with u = 20, and a treatment is administered to each individual in the sample. After treatment, the...
A dog trainer has determined that the number of weeks to fully train a dog is either 1, 2, 3, or 4 weeks, depending on the type of dog.  The dog trainer developed a probability function where f(x) = ...
An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cost and using the least squares method to develop an estimated regression ...
The following data show the ages of recent award-winning male actors at the time when they won their award. Make a frequency table for the data, using bins of 20-29, 30-39, and so on.    . Tar (mg) ...
Math 534 week 2 optional video assignment 1 question 2, the host notes that the chances of a hard Brexit, or quick departure of Britain from the EU, have diminished quite rapidly. This means that ----...
14.36 Is This Coin Balanced? While he was a prisoner of war during World War II, John Kerrich tossed a coin 10,000 times. He got 5067 heads. If the coin is perfectly balanced, the probability of a hea...
Angela took a general aptitude test and scored in the 94th percentile for aptitude in accounting. What percentage of the scores were at or below her score? What percentage were above? Need Help? Read ...
A sales manager collected the following data on  x  = years of experience and  y  = annual sales ($1,000s). The estimated regression equation for these data is  ŷ  = 81 + 4 x . Salesperson ...
I have a project than I want you to help me with it; it title is [Project: Benefit-Cost Analysis of Dam Construction Projects ] Answwr it in R with its explanation:   Problem:    Corporations have ...
A landscaping company has collected data on home values (in thousands of $) and expenditures (in thousands of $) on landscaping with the hope of developing a predictive model to help marketing to pote...
I have a project than I want you to help me with it; it title is [Project: Benefit-Cost Analysis of Dam Construction Projects ] Problem:    Corporations have to select among many projects that are u...
Present two different types of data, or variables, used in the health field. Examples could be blood pressure, temperature, pH, pain rating scales, pulse oximetry, % hematocrit, minute respiration, ge...
 . The random variable x has the following discrete probability distribution. Complete parts a through g. 4 6 8 p(x) 0.1 0.2 0.4 0.2 0.1 a. List the values x may assume. 0.0.0. O. (Use ascending orde...
Review the Learning Resources for this week related to frequency distributions and graphic displays of data. Using the SPSS software, open the General Social Survey dataset found in this week's Learni...
 . From past experience, a wheat farmer finds that his annual profit (in dollars) is $83,000 if the summer weather is typical, $49,000 if the weather is unusually dry, and $29,000 if there is a sever...
A team of American researchers studying Educational Psychology were interested in investigating the use of SAT scores (the SAT is a standardized test used for college admissions in the United States) ...
73% of students who study for at least one hour will score higher than an 80%. In a SRS of 50 students it was found that 75% of students actually did. Which percentage represents a statistic? Group of...
Find the shaded area under the standard normal curve. Table for required value of z Table for areas under the standard normal curve Z 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.0 .0000 .0040 .00...
Scenario Smart businesses in all industries use data to provide an intuitive analysis of how they can get a competitive advantage. The real estate industry heavily uses linear regression to estimate h...
If your research includes more than two groups and you perform multiple t-tests rather than an ANOVA, there is a chance of _________________. a. alpha inflation b. beta inflation c. sampling error d. ...
Accident victims are sometimes taken by helicopter from the accident scene to a hospital. Consider the following data:   A. What percentage of patients did in each transport mode?  What do those per...
A researcher is investigating the effect of the number of hours of television children view and the primary type of program children view on the children's level of aggression. Here are the mean aggre...
 A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 288 feet of fencing and does not fence the side along the street, what is the large...
A researcher is investigating the effect of the number of hours of television children view, and the primary type of program children view on the children's level of aggression. Here are the mean aggr...
I need typed answer and step by step proper explanation. Question 2 1.5 pts Adam is a freshman at UMD and assume that the probability that he gets an A in a class is 0.4, and his performance in a clas...
 . Q1.2 1 Point Recommending products using a classification approach can: provide personalization capture context (e.g. time of day) none of the above. Q1 Recommender Systems 3 Points For each of th...
 . Question A soft drink dispenser is set to automatically dispense drinks and ice in 8 oz. cups. The machine is set to fill the cups with 7 1/4 oz. so that the liquid will not run over the top of th...
 . Test number Industry standard software package In-house software package 449 418 1:42 127 4:36 404 495 437 168 411 491 429 396 421 461 437 634 430 475 447 402 411 447 431 479 440 14 484 443 15 458...
asap and correct. Q2. The cumulative frequency of random variable T , is given by 0, t<1 :, Ist <3 F(t) = 3st <5 [6 marks] 2. 5St <7 1, t27 Then find i) P(T = 3) ii) P(T > 5) 1) P(2 &lt...
I would like the following formulas needed please and thank you. We assume the two population variances are not equal Inputs First Term Second Term Final Sample Seeded Unseeded Top Sample size n 26 26...
 . An article suggests that substrate concentration (mg/cm) of influent to a reactor is normally distributed with u = 0.40 and o = 0.07. (Round your answers to four decimal places.) LA USE SALT (a) W...
I would like the following questions answered witht he formulas that I would need to do them please. Home Insert Draw Page Layout X . . v Callbrl (Body) m [B v Paste 6' Bruv Formulas Data Review Vie...
please answer all the questionss.,.within 30 minutes. make sure the calculations are explained in very detailed manner. else leave it for other tutor otherwise i will give negative ratings and will al...
 . Let X denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. Suppose that for banner-tailed kangaroo rats, X has an exponential distributi...
 . Let X = the time between two successive arrivals at the drive-up window of a local bank. If X has an exponential distribution with 1 = 1, (which is identical to a standard gamma distribution with ...
 . An article suggested that yield strength (ksi) for A36 grade steel is normally distributed with A = 45 and o = 5.5. LA USE SALT (a) What is the probability that yield strength is at most 38? Great...
 . In each case, determine the value of the constant c that makes the probability statement correct. (Round your answers to two decimal places.) LO USE SALT (a) @(c) = 0.9857 (b) P(0 < Z < c) =...
Exercise 3 Suppose a new drug is available for treating high blood pressure. We want to investigate its effect by running a controlled experiment: . We randomly select some patients with high blood pr...
The local bank wants to predict the probability that their customers will likely default on the loan. A random sample of 500 customers were drawn from their database with loan default as the dependent...
 . The accompanying scatterplot shows the median weekly earnings (by quarter) for men and women in a country for the years from 2005 through 2017. The correlation is 0.981. Complete parts (a) through...
 . Homework # 6 For this week's homework, we will revisit some old homework problems. But this time we'll use R to solve them (you must use R to do problems 1 - 5). We'll also collect a little data i...
For questions 8-18, please refer to the following information : The City of Chicago developed the Chicago COVID-19 Community Vulnerability Index (CCVI) to identify communities that have been dispropor...
 . Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not. X -2 6 7 P(X = x) 4 Answer First, decide whether the distribution is a discre...
An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cost and using the least squares method to develop an estimated regression ...
For questions 1-7 , please refer to the following information: A study of helmet users and non-users injured in bicycle crashes yielded the randomly selected sample data summarized in the output provi...
Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a terrorist than of getting married." A study found that the likelihood of marriage for a never-previo...
(64-M7) In a drug trial researchers found that some patients suffered side effects.  40% suffered headaches, 25% suffered dizziness, and 10% suffered both dizziness and headaches.  What percent of t...
A  production manager  can use hypothesis testing to test assumptions and theories. These assumptions are tested against evidence provided by actual, observed production data. A statistical hypothes...
 . A random sample of measurements of the length of 500 menhaden (fish) is taken. Suppose a 99% confidence interval (CI) for the population mean length is 200 to 240 mm. If a 95% CI is also calculate...
 . Suppose it is relatively easy to generate random variables from any of the m cumu- lative distribution functions Fi(x), F2(x), Fa(x), FA(x), ..., Fm(x). Given this, how would you generate a random...
 . Consider the points 1, 2, 3, 4 to be marked on a straight line. Let Xn be a Markov chain that moves to the right with probability 2/3 and to the left with probability 1/3, but subject to the rule ...
NASA is conducting an experiment to find out the fraction of people who black out at G forces greater than 6. In an earlier study, the population proportion was estimated to be 0.39. How large a sampl...
 . Customers arrive at a bank according to a Poisson process with rate 10 per hour. Given that two customers arrived in the first 5 minutes, what is the probability that (a) Both arrived in the first...
Do you know how to find the percent confidence intervals using the TI-Nspire calculator?  . Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found ...
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. In an earlier study, the population proportion was es...
 . The Weibull cumulative distribution function is F(x) = 1 - exp - r 20,a > 0, 8 30. (a) Find the density function (b) Show that if W follows a Weibull distribution, then X = (W/a) follows an exp...
 . Consider a memory system which only allows you to do sequential search. For example a read/write tape drive. If you want to look for a file you have to search sequentially looking at the first fil...
Estimate the difference in the yearly usage for the billing month. Include the units in your answer   . 12:10 83 AA forms.office.com C Hi, Het Vishnubhai. When you submit this form, the owner will s...
 . Application: Utility, production, and linear regression functions. The objective of this activity is to calculate and interpret partial differentials of common multi-variable economic functions. 4...
 . PART 1: Single Variable Optimization Second derivatives and second derivative test. The objective of this activity is to denote and interpret second derivatives; and the second derivative test. 1....
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. In an earlier study, the population proportion was es...
Background   In 2004, Washington State had one of the closest gubernatorial (governor's) races in history. This state typically favors Democrats, but in this election, Dino Rossi (a Republican) got 1...
 . Scientists claim that there is a possible relationship between the severity of Covid-19 and a low level of blood vitamin D. The normal level for vitamin D is around 30ng/ml. For this reason, the v...
A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 1 of 2 :    Suppose a sample of 1067 floppy disks is drawn. Of these disks,...
 . Current Attempt in Progress Use the following data to develop a quadratic model to predict y from x. Develop a simple regression model from the data and compare the results of the two models. Does...
2. Population Means - Independent Samples   Nightingale shoes is interested to know who is spending more on their brand: women or men. They surveyed the first 200 people who entered their store. They...
Calculate the percentages using church attendance as the independent variable for each cell in the table.. Attendance Homosexual Relations Several times a Every Never Total year week Always Wrong 70 7...
  Nightingale Shoes is trying to determine the demographic who is purchasing their shoes. After surveying customers who enter their store, they find that 205 out of 369 adults between the age of 20 t...
Church Attendance Homosexual Relations Several times a Every Never Total year week Always Wrong 70 75 180 325 Not Wrong at All 150 45 44 239 Total 220 120 224 564 Using the above table on church atten...
3. Proportion and percentage A statistics content developer at Aplia wanted to know whether study skills are related to memory quality. She invited student volunteers to perform an online memory task....
A professor wants to estimate how many hours per week her students study. A simple random sample of 54 students had a mean of 17 hours of studying per week. Construct a 90% confidence interval for ...
   . 4.18. Refer to Plastic hardness Problem [.22. Suppose that errors arise in X because the laboratory technician is instructed to measure the hardness of the ith specimen {Yd at a prerecorded ela...
   . 4.14. Refer to Grade point average Problem 1.19. Assume that linear regression through the origin model (4.10) is appropriate. a. Fit regression model (4.10) and state the estimated regression ...
The file avengers.csv Download avengers.csv contains data on 173 listed Avengers from the comic book edition, which includes the following variables: URL: the URL of the comic character on the Marvel ...
hi can i get help with this question from my homework please?. A bowl contains 12 balls, of which 6 are blue, 2 are white , and 4 are red . We draw 4 balls at random, without replacement. ( a) what is...
hi can i get help with this question from my homework please?. Each day the price of a stock moves up half a point with probabil- ity 2 and moves down half a point with probability ?. What is the prob...
hi can i get help with this question from my homework please?. Let X and & be fur RV's sock that: E (X ) = 3 Var (X) = 9 E ( Y) = - 2 Var (t ) = 4 X and Y are independent Define U = X' + 3 X - 4 X...
         . K) If you lower the level of significance to or = 0.01, does your decision change? Explain your reasoning. L) Describe the type | and type II errors that could occur in our test by com...
Recall that in the simulated annealing program, the acceptance probability for a candidate solution becoming the current solution is given by Pr[Accept X; as the current solution} where Af A S fi - fi...
Please help with how you get the answer. 2. Eric Stall purchased a used truck with 29,300 miles for $39,000. Originally the truck sold for $55,500. Once residual value is taken into account, the depre...
Suppose the heights of 18-year-old men are approximately  normally distributed , with mean 73 inches and standard deviation 5 inches.   (a) What is the probability that an 18-year-old man select...
A new mobile virtual network operator is in progress to provide communication services to consumers. To price the plans, the operator consults you to provide data before doing so. Using multiple regre...
In the game of​ roulette, a player can place a ​$8 bet on the number 5 and have a 1/38 probability of winning. If the metal ball lands on 5 ​, the player gets to keep the ​$8 paid to play the ...
 . MDM 401 141 9. A class of high school students was surveyed to determine their spending habits. The following table shows the average monthly spending for various categories. Expenditure Amount ($...
 . 7. Which statement is most accurate about the following graph? Average Global Temperature 32.10 2200 a) the temperature has increased slightly in the 21.80 last 100 years 2 21.40 the temperature h...
 . Part A: Definitions [K5] 1. Match the term with its definition. 1. Median A. Number of times an event occurs 2. Sample B. Refers to entire group about which data is being collected 3. Trend C. Str...
1. Let  z  be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.)   P ( z  ≥ −1.54)  =    2. Let  z  be a r...
 . Question 3 [15 points] The nutritionist want to check if the simple linear model is appropriate. He created the following plots. 20 O Oc O 10 20 Residuals 0 O O Absolute Residuals O OO 0 80 O DO -...
Given the following rules and certainty factors draw the inference network and show all certainty  factors. Show calculations for full credit.  a. Rule 1: IF A THEN B {cf -0.8}  b. Rule 2: IF A THE...
  1. What is the area under a standard normal curve? Why is it that number?   2.  A statistics student was about to hand in some homework when his friend pointed at his answers and said, "You may ...
Answer Q1. State the objective function, decision variables and constraints. Use the Example below to formulate the linear programming equation. Also show the the excel model and the solver parameters...
urgent please no chat gpt.  . Find the indicated probability. If necessary, round to three decimal places. Suppose that E and F are two events and that P(E and F) = 0.13 and P(E) = 0.5. What is P(F E...
 . #3. A fisherman is restricted to catching at most two red groupers per day when fishing in the Gulf of Mexico. A field agent for the wildlife commission often inspects the day's catch for boats ...
Media piracy - the illegal downloading of media such as songs, television shows, movies, and books - is an ongoing problem for publishers and producers. Publishers, concerned about the effect of pirac...
Suppose that we will take a random sample of size  n  from a population having mean  µ  and standard deviation  σ . For each of the following situations, find the mean, variance, and standard d...
Please solve these Buqu 1230 question for me immediately. Need urgent help. 19 H K 20 4. Develop the 99% interval estimate for the mean number of devices using wifi if the 21 population standard devia...
Find the Sharpe Ratio of the Following Tech Portfolio. Use stock data from tidyquant package, use the contrafund.csv (provided below) to get the data for the risk free rate.   Stocks: Faceboo...
 . 4. (20 points) Youtube has been collecting data on your browsing behavior. Based on their proprietary algorithm, they now recommend videos to you by category according to the following transition ...
Rachel rolled a number cube  150  times and got the following results.   Outcome Rolled 1 2 3 4 5 6 Number of Rolls 29 26 23 26 24 22   Answer the following. Round your answers to the nearest thou...
 . In a study of 420,120 cell phone users, 148 subjects developed cancer of the brain or nervous system. Test the claim of a somewhat common belief that such cancers are affected by cell phone use. T...
Senior vice president of the Steel's production operations and one of his production managers notice that over the span of ten years the production facility regularly did not meet its planned producti...
A spinner with 10 equally sized slices is shown below. (The 10 slices are yellow.) The dial is spun and stops on a slice at random. What is the probability that the dial stops on a yellow slice?  ans...
 . In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6974 subjects randomly selected from an online group involved with ears. There were 1328 surveys ...
 . homework#7-slo-hillview - Fit Least ... X homework#7-slo-hillview - Fit Least ... X homework#7-slo-hillview - Fit Least Squares 2 - JMP Pro X File Edit Tables Rows Cols DOE Analyze Graph Tools Fil...
Hale High School is going to select a committee. The committee will have a faculty member, a male student, a female student, and a parent. Here are the positions and the people interested in each.   ...
 . (2 points) The following Exercise is based on summary statistics rather than raw data. This information is typically all that is presented in published reports. You can calculate inference procedu...
 . i) What does the t-tests for interaction reveal Model 3 variable " Hill View *size"? State the null/alternative hypotheses and decision/ conclusion.. homework#7-slo-hillview - Fit Least ...
 . h) Interpret the slope "HillView *size" for Model3 .. homework#7-slo-hillview - Fit Least Squares 2 - JMP Pro O X File Edit Tables Rows Cols DOE Analyze Graph Tools Add-Ins View Window H...
 . (2 points) Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test B. Their scores are shown in the table below. Person A B C D E F G H Test A 75 123 97 111 9...
 . 3. (7 points) Using a gene expression data set that consists of 40 tissue samples (the columns) with measurements on 1,000 genes (the rows). How many groups do the genes separate into - 2 clusters...
In r studio.    . 2. Consider the following stocks (in the Dow Jones Index). In R, their tickers are given as follows: symbol_seq <- c("MMM", "AXP", "AMGN", "AA...
 . (b) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of 1200 registered voters and found that 620 would vote for the Republican candida...
 . Let A represent the event that the individual smokes, and let B represent the event that the individual develops cancer. a )Suppose you are given the following: P(A)= 0.25, P(B A)= 0.20, P(Ac)= 0....
  hello, please show all work and solutions for questions 4 and 5 and explain how you got each part. Thank you in advance!!. Question 4. Airplane arrivals at Pearson airport occur according to a Pois...
 . You have a standard deck of card containing 52 cards. There are 13 cards in each of 4 suits (hearts , spades , diamonds <, and clubs &.) Within a suit, the 13 cards each have a different ra...
USE THE NUMBERS BELOW    The CSDATA data set contains the college grade point averages (GPAs) of all 224 students in a university entering class who planned to major in computer science.  This is o...
Using the data in the provided BELOW , complete the case study from class on covid vaccine efficiency using Israeli data broken down into finer cohorts.    a. Compute the unvaccinated severe risk fo...
The claim is a mean is 165 and you want to prove it is less. Test the hypothesis within a 1% level of significance. Your sample of 119 had a mean of 161.7 and standard deviation of 46.2. Level of diff...
A study in Slovakia fit a multiple regression model relating Heights of adult females (Y, in centimeters), to  Right Foot Length (X1, in cm) and Left Hand Length (X2, in cm).   1) Obtain the least s...
In a recent sample of 85 used cars sales costs, the sample mean was $6,325 with a standard deviation of $3,153. Assume the underlying distribution is approximately normal.   a. Construct a 95% confid...
Age- mean 68.15 (SD=68; SE=1)             Median 65.00             Mode 46.00 Weight- mean 206.70 (SD=204; SE=2)             Median 218.00             Mode ...
1. [2 points] [Critical Values] Let or = 0.1 + 0.01 x a + 0.001 x b. a. Find the critical z-value za . b. Sketch the PDF (probability density function) of the random variable z with standard normal di...
        These data are from 2017 for selected countries around the world. Fill in the blank cells in the table and answer the questions that follow using data from the table. Country Midyear 2017 ...
please give code in R. 2. Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random s...
Ty According to government data, 61% of employed women have never been married. Rounding to aby 4 decimal places, if 15 employed women are randomly selected: aby a. What is the probability that exactl...
 . R and Inferential Techniques (MOL8- 1. A bolt diameter is measured in inches. Here is a simple random sample of 11 bolt diameter measurements:< 1.11 1.07 1.11 1.07 1.12 1.08 1.08 1.15 1.18 1.18...
 . Mod 7 R and Discrete Probability Distributions- Name (type your name here): < Use R functions for probability distributions in this assignment. For example! it you are finding probabilities fo...
 . DO ONLY 3 OUT OF 5 QUESTIONS 2. IfP (A) = 0.6, P (B)=0.5 and P (A V B) = 0.9, find the following probabilities: (a) P(AnB) (b)P(AB) 3. Given that P (A) = 0.3. P (B) = 0.6, and P (B/A) =0.4, find t...
In this exercise, we will predict the number of applications received using the other variables in the College data set. (a) Split the data set into a training set and a test set. (b) Fit a linear mod...
 . ## Question 1 It's essential to understand the difference in how to interpret the average and standard deviation of a set of data values vs. the average and standard deviation of a probability dis...
 . Here is the histogram representing the scores of 25 students on the last question of the midterm. 10- frequency N score If you do not know the population variance of the score on the last question...
Please answer this question and include any written work used to solve. . You want to know if altering one's belief in free will change a person's attitudes about punishment. You find a scale that ev...
A hypothetical population consists of 8 individuals ages: 13, 14, 17, 20, 21, 22, 24, & 30 Enter this data into Excel - using the data analysis function, find the "descriptive statistics" using th...
Show all work please! thanks. A steady stream of irwoices has a nonconformity of .03. What is the probability of obtaining 2 nonconforming units from a sample of 2D using the binomial distribution. Ca...
Please answer all question 1-14 by selecting all of the correct options for each question. Question 11 1 pts Fake scenario: Neurons in our body generally have a binary on vs off switch. A previous stu...
3. A new medication is being developed to treat severe morning sickness in pregnant women. The information below was generated from a small sample size (n = 6) and shows the number of times a woman ...
Every day Albert jogs on a circular track that is 5-kilometer long. Yesterday, he dropped a flash drive somewhere on the track. He is going back today to look for the drive. (a) If he picks a random l...
A study of seatbelt users and non users yield the randomly select a sample data summarized the accompanying table table. Used a 0.05 significant level to test the claims that the amount of smoking is ...