Statistics and Probability questions and answers in March 2023 — Page 5

There are six possible pairwise comparisons. For example, you need to compare 20 − 29 vs. 30 − 39 and 20 − 29 vs. 40 − 49 etc. Using the Kruskal-Wallis test, check if the women's heights ar...

A political campaign is interested in whether city 1 has less support for raising the minimum wage than city 2. Polls were conducted in the two largest cities in the state about raising the minimum wa...

4. While you have been asked to do a Between-Subject ANOVA for both Questions 2 and 3 (on data from Labs 1 and 4) above, technically the appropriate ANOVA would be a Repeated-Measure ANOVA. Why? And w...

The distribution of scores in a sample that is drawn from a normal population will approach "normality" as: 1) Variance decreases 2) Number of scores increases 3) Number of scores decreases 4) Vari...

for the bottom on i need the test statistic. . ls Fast Food Messing With Your Hormones? Examine the results of a study1 investigating whether fast food consumption increases one's concentration of ph...

. D Question 1 5 pts Question Set 1_A: Check assumptions for a confidence interval for two proportions. Specifically, we can use the normal approximation if there are at least 10 "successes&quo...

. CHALLENGE ACTIVITY 4.2.1: Empirical rule and probabilities. 470082.3302644.qx3zqy7 Jump to level 1 Housing prices in a small town are normally distributed with a mean of $159,000 and a standard de...

. Develop a 1-2 page short essay (double spaced, and 12 pt) to address the following questions: 1. When to use t-tests and when to use ANOVA? What are the requirements of independent variables and d...

for the bottom one i need to fine the p-value and the test statistic. . Is Fast Food Messing With Your Hormones? Examine the results of a study investigating whether fast food consumption increases o...

The amount of syrup that people put on their pancakes is normally distributed with mean 62 mL and standard deviation 12 mL. Suppose that 8 randomly selected people are observed pouring syrup on their ...

. 2. Two diet drugs were compared over a course of several months. A hypothesis was conducted and with a p-value of 0.026 it was determined that patients taking drug1 lost more weight than those tak...

. + Television viewing habits are changing. In January 2019. Hub Entertainment Research (https://www.marketingcharts.com/industries/media-and-entertainment-108210) asked consumers. "Which netwo...

. The average production cost for major movies is 59 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 12 randomly sel...

. Question 1 (5 points) Saved You have just finished administering a food/drink questionnaire to ill and nor participants in a Minnesota summer picnic party. The ill individuals develope...

The lengths of adult males' hands are normally distributed with mean 194 mm and standard deviation is 7.2 mm. Suppose that 13 individuals are randomly chosen. Round all answers to 4 where possible. ...

. D Question Set 1: Pennsylvania State Residency by Campus Researchers are comparing the proportion of PSU University Park (UP) students who are Pennsylvania residents to the proportion of PSU World...

The average price of a college math textbook is $155 and the standard deviation is $26. Suppose that 7 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. . The aver...

A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 28 weeks. Assume that the length of unemployment is normally distributed with po...

Suppose that the area above some Z score is 0.31, which when multiplied by 100 equals 31%. What is the term for this quantity? O The mean O The standard deviation O The proportion between the mean and...

. Question 2 17 Points A recent Harris Poll survey 1010 U.S. adults selected at random showed that 627 consider the occupation of firefighter to have very great prestige. Estimate the probability (t...

there may be an ANOVA table needed fro quesiton 5 if applicable. Here is the excel table . 5. School district officials are curious if test scores vary across the four high schools in their distr...

Joe is conducting an experiment to test a new type of psychological therapy to treat schizophrenia. He wants to be sure he identifies any significant effect if there is one. Joe adjusts several things...

. Done < AA myopenmath.com C Homework: Section 6.2 (Using the Normal Distribution) Progress saved Done Vo. . . . Score: 0/11 0/11 answered Question 6 0/1 pt 9 2 98 0 Details Assume that the readi...

. Done < AA 6 myopenmath.com C ['1] @ Homework: Section 6.2 (Using the Normal Distribution) Progresssaved Done E.) i/Ec. 5 Score: 0/11 0/11 answered 0 Question 3 v < > B 0/1 pt '0 2 3 98 ...

. The Avengers have just finished saving New York. They have decided to meet up at their new favorite shawarma place. The restaurant knows that Avengers will arrive according to a Poisson Process wi...

housing prices in a small town are normally distributed with a mean of $179,000 and a standard deviation of $7,000. Use the empirical rule to complete the follow statement. Approximately 95% of housin...

. 1. TTU Parking wants to understand what areas on campus receive the most parking citations. They collate data from 30 observations collected in six specific large lots. a. Complete the ANOVA table...

Solve problem using excel. James Bond has a habit of abusing the cars he drives. As his mechanic, you are in charge of maintaining his car. At the start of every day, you inspect his car. You classify...

. Done < AA myopenmath.com C Homework: Section 6.1 (The Standard Normal Distribution) Progress saved Done Vo . .. . Score: 0/7 0/7 answered Question 1 0/1 pt 9 2 98 0 Details The physical plant a...

An analysis which returns a p value of 0.01 can be interpreted as - select the correct answer: The odds of getting the results by chance is 1 in 100 The odds of getting the results by chance is 1 i...

A research group collects data on abstract reasoning skills development in children from birth to ten years of age and based on their data predicts changes in the skill level of children beyond age 10...

The local board of education conducts an analysis of student grades and identifies that the students who did well in math classes tend to do poorly in language arts. Which correlation coefficient is m...

Suppose that the scores on a reading ability test are normally distributed with a mean of 60 and a standard deviation of 8. What proportion of individuals score at most 56 points on this test? Round y...

Let (Ω, Pr) be a probability space. Consider two independent random variables A and B such that V ar[A] = 9 and V ar[B] = 16. Calculate the standard the deviation of 2A + 3B. For this problem, you m...

Step One: Watch the Video (You Tube) 1. Go to the Watch: Simon Sinek on Millennials in the Workplace (You Tube) What are possible inclusion criteria (what defines a useable comment) for the above vide...

Please do it in Excel, if possible please up load the link so I can download and see the function. PROBLEMS 1. The relationship between advertising budget and the number of cars sold can be described ...

Chapter 18 Practice Probability Models: This model summarizes how individuals obtain dogs as pets: Where They Go Proportion Animal Shelter/Human Society 0.28 ...

Suppose that you generate an 8-character password by selecting each character independently and uniformly at random from {a, b, . . . , z} ∪ {A, B, . . . , Z} ∪ {0, 1, . . . , 9}. (a) What is ...

Based on this information below, describe what type of evaluation it is the most appropriated to use to evaluate the program. The evaluation types include implementation/process, outcome and ...

In this scenario, it specifically states that they are measuring whether test performance can be PREDICTED based on ones anxiety.....Doesn't that mean that we would use a simple regression analysis to...

. m/ ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252F... A V Chapter 6 (Sections 6.1 throug.. Saved Help Save A lottery ticket has a grand prize of $45.6 million...

A casino has purchased several new Roulette wheels for their casino. A typical roulette wheel has 38 slots: 18 red, 18 black, and 2 green. The manager chooses a wheel at random and spins the wheel 60 ...

Instructions: The goal of a one sample z-test is to explore whether a sample significantly differs from the entire population from which the sample is drawn. The Miami Heat are a sample of players, ...

Instructions: The goal of a one sample z-test is to explore whether a sample significantly differs from the entire population from which the sample is drawn. The Miami Heat are a sample of players...

The following data show the brand, price ($)), and the overall score for six stereo headphones that were tested by Consumer Reports (Consumer Reports website). The overall score is based on sound qual...

using the following constraints 4 few hours to spend every day after arriving home from work tasks that need to get done: Cooking: 1 hrs Homework: 2 hours Personal time: 1 hour Gym 1.5 hrs...

Hello I need some help with my homework and was needing someone to help me. Thanks! . How large a sample should be selected to provide a 95% confidence interval with a margin of error of 1? Assume...

. Q1) Chi-Square Test for Goodness of Fit (7 points) Two employees at an ice cream store were discussing the popularity of four of the ice cream flavors they have: Vanilla, Chocolate, Mint, and Stra...

. The y—intercept of the least squares line is . When there are no returning sparrow hawks, there will be almost new sparrow hawks. (c) How well does the regression line fit the data? Explain y...

. The cetane number is a critical property in specifying the ignition quality of a fuel used in a diesel engine. Determining this number for a biodiesel fuel is expensive and time consuming, The art...

q1 . 74 89 80 93 64 67 72 70 66 85 89 81 81 71 74 82 85 63 72 81 81 95 84 81 a.) Find Stem and Leaf b.) Find 5 classes c.) Tally d.) Frequency e.) Relative Frequency D f.) Histogram g.) Mean h....

. 1. While testing allele frequencies against the expected proportions is helpful when genetic data are available, chi-square statistical tests can be used in many other situations whenever frequenc...

Question 1 (20 points): In research whose objective is to compare access to financing for innovative versus non-innovative SMEs and to demonstrate that accepted applications are identical, the followi...

Solve using Excel, showing the steps. Studies have shown that the frequency with which shoppers browse Internet retailers is related to the frequency wi...

Please solve the following and show how to do it using Excel. An analyst at a local bank wonders if the age distribution of customers coming for service at his branch in town is the same as at a br...

. 12-37. The Lanier Company produces a single product on three production lines that use different equipment. The production manager is considering changing the layouts of the lines and would like t...

I need help with these three questions I. The Loudness of sound in decibels perceived by the human ear depends on the intensity levels according to I 0 Find the decibel level when I is 158,489 times...

. Question 1. You work for a consumer group that is looking at the longevity of laptop batteries. Your team runs an experiment that simulates normal usage of ten identical laptops from a well-known ...

Final Research Report: NEED DETAILED research report with abstract based on an analysis of the data file. Choose a hypothesis, cite at least three references to justify the hypothesis NEED CL...

Statistics Exercise IV: Analysis of Variance These weekly exercises provide the opportunity to understand and apply statistical methods and analysis. Unless otherwise stated, use 5% (.05) as alpha l...

Activity Description Statistics Exercise III: Related-sample t; confidence intervals These weekly exercises provide the opportunity to understand and apply statistical methods and analysis. Unless oth...

Statistics Exercise VI: Non-parametric statistics apply statistical methods and analysis. Unless otherwise stated, use 5% (.05) as your alpha level (cutoff for statistical significance). Ice Cream ...

Researchers are comparing the proportion of Penn State University Park students who are Pennsylvania residents to the proportion of Penn State World Campus students who are Pennsylvania residents. Dat...

What Gives a Small P� -value? In each case below, two sets of data are given for a two-tail difference in means test. In each case, which version gives a smaller p -value relative to the other? Part...

Consider random samples of size 84 drawn from population A with proportion 0.41 and random samples of size 68 drawn from population B with proportion 0.16 . (a) Find the standard error of the distribu...

. 5. Consider the discrete system 7 mn+l : 55911 (1 + $11) (a) Find all of the equilibrium points and classify their stability. (b) Determine the periodic orbit {a, 6} of period two. (Hint: ﬁrst s...

Where in your personal life do you see/use statistics in making decisions? Where in your professional life do/will you need to make decisions based on data? What understanding or skill related to stat...

1. El consejo de la ciudad de Pine Bluffs considera aumentar el número de policías en un esfuerzo para reducir los delitos. Antes de tomar una decisión final, el ayuntamiento pide al jefe de polic?...

. The table to the right shows the medal count for three countries following an international athletic event. Complete parts a. through c. below. Modal Country Gold Silver Bronze A 8 1 4 1 3 B 1 0 1...

Hey could you please help me with these questions. A recent random sample of n = 925 Canadians was taken, of which 564 indicated they planned to wear a poppy as a symbol of Remembrance Day. A 95% conf...

Please help with this task! Please only do it in R-code ("R-studio-Rscript.") Don't do it in any other code language. . Suppose X has a normal distribution with mean 1.77 and standard deviation...

. 28. Baby talk: In a sample of 77 children, the mean age at which they first began to combine words was 16.51 months, with a standard deviation of 9.59 months. a. Construct a 95% confidence interva...

. c. If the confidence level were 98% rather than 95%, would the margin of error be larger or smaller than the result in part (a)7 Explain. d. Based on the confidence interval constructed in part (a...

. In: Score: 6/24 9/17 answered Progress saved Done a WC. . Question 2 v < > [3 0/2 pts '0 100 6) Details Company XYZ know that replacement times for the quartz time pieces it produces are nor...

Please help. 16. This question is worth up to 40 points extra credit, but it will be graded manually. This means that it might show temporarily with a score of zero even if your answer is correct...

6. Which of the following is statistically significant? (Use table 3 to determine this) A. Gender differences in VAS-FOF B. Gender differences in LI C. Gender differences in FES D. Work status level d...

7. The correlation between FES score and VAS-FOF is said to be -0.425. The relationship between these two variables is ... A. Moderate and positive B. Moderate and negative C. Weak and positive D. Wea...

• Build new kitchen cabinets - 2 weeks • Remove existing kitchen cabinets and flooring - 2 days - task 1 • Install tile backsplash - 2 days • Install new cabinets - 2 days • Remov...

Q. 5 (20 points) The dataset, "abc.txt" posted with the assignment come from an experiment to understand the strength of wool under load stress as a function of three factors The length of the test sp...

8. A normal population of cheerleader squads receive a mean rating of 75 (σ =4.0). City College cheerleaders received a mean score of 78 on 36 local competitions. Using a one tail z test (α = 0.05) ...

the probability of flu symptoms for a person not receiving any treatment is 0.05. In a clinical trial of a common drug used to lower cholesterol, 54 of 981 people treated experienced flu symptoms. ...

Question 14 < 6.2 The Standard Normal Distribution Table: Z-score and Probability The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 37 liters, and sta...

Suppose a sample of O-rings was obtained and the wall thickness (in inches) of each was recorded. Use a normal probability plot to 0. 158 0.188 0.208 0.210 assess whether the sample data could have co...

Can someone please help me answer the two questions with clear detail steps. I would be greatly appreciated. . The data in the table below came from randomized controlled trials that tested the...

Find the z-score such that: (a) The area under the standard normal curve to its left is 0.5601 z = (b) The area under the standard normal curve to its left is 0.6491 z = (c) The area under the sta...

please help. ill leave a good feedback thank you . Question 12 of 18 This question: 5 point(s) possible Su The table below shows the frequency distribution of the weights (in grams) of pre-1964 quar...

1. develop a frequency table with the following question a) Roll two dice 30 times . Each time you roll the 2 dice, record the sum of the numbers (e.g., if one dice came up '1' and the second dic...

I would love some guidance on this problem. I have a little lost on i and j. Thanks in advance for your time. . Problem Set 6 Statistical Signiﬁcance (Chapter 6) 1. Does REM sleep play a role in...

how can i find the Anova results table for the data down below: The impact of various teaching methods on reading comprehension is something I'm curious about. I wish to randomly divide three sam...

Question 8 options: In a box there are 3 red cards and 5 blue cards. The cards are well-shuffled. If you pick a card without looking at the box, what is the probability that you pick a red card? (roun...

Please answer on Excel correctly. Sabbina Ing, a recent BBA graduate of Algoma University is planning to move cross country from Brampton, Ontario to Halifax, NS where her first job is located. She ha...

There are 230 welders employed at the Weller Shipyards Corporation. A sample of 34 welders revealed that 17 had graduated from a registered welding course. Construct the 99% confidence interval for th...

. Because colas tend to replace healthier beverages and colas contain caffeine and phosphoric acid, researchers wanted to know whether cola consumption is associated with lower bone mineral density ...

You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 90% confidence level and state that the estimated proportion must be within 2% of the popu...

The employees of Electronics Inc. would like to have a dental plan as part of their benefits package. The question is: how much does a typical employee and their family spend per year on dental expens...

The gas mileages (in miles per gallon) for 28 cars are shown in the frequency distribution. Approximate the mean of the frequency distribution. Gas Mileage Frequency (in miles per gallon) 30-35 36-41 ...

The estimate of the population proportion is to be within plus or minus 0.04, with a 80% level of confidence. The best estimate of the population proportion is 0.11. How large a sample is required? (R...

Previous surveys estimated that 9% of students use the college gym. The manager would like to verify this estimate within plus or minus 0.03. At a 80% level of confidence, how large a sample is requir...

We want to estimate the population mean within 22, with a 90% level of confidence. The population standard deviation is estimated to be 63. How large a sample is required? (Round the intermediate calc...

There are 290 welders employed at the Weller Shipyards Corporation. A sample of 44 welders revealed that 33 had graduated from a registered welding course. Construct the 99% confidence interval for th...

Out of a sample of 440 students, 280 indicated that they preferred chocolate ice cream to vanilla ice cream. a. Estimate the value of the population proportion of those who preferred chocolate ice ...

. (b) Use rules of variance to obtain an expression for the variance and standard deviation (standard error) of the estimator in part (a). v( x - n = V(x) + vin) Identify the next step in this rule ...

The following table displays blood pressure status and gender. Optimal Normal Hypertension Total Male 22 75 56 153 Female 43 134 64 241 Total 65 209 120 394 The hypertensive status and male g...

. Suppose you use the decision rule "decide the text is Al-generated only if both tests indicate the text is Al-generated". What is the false positive probability and the detection probabi...

Week Total Sales Revenue Total Operating Cost Direct Labor Hours New Menu Items Developed Number of Deliveries (Customer Meals) Number of Deliveries (Donated Meals) Total...

The following table displays blood pressure status and gender. Optimal Normal Hypertension Total Male 22 75 56 153 Female 43 134 64 241 Total 65 209 120 394 What proportion (%) of participants D...

A researcher wants to select a group of individuals that have either diabetes or obese or both, in order to assess the physical activity level among diabetic or obese people. Among a group of 500 peop...

In 2013, the Pew Research Foundation reported that "37% of U.S. adults report that they live with one or more chronic conditions". However, this value was based on a sample, so it may not be...

How to do this in math?. 3. (Single index model) Use the same data and setting in Problem 2. The single index model is Rm : 0b; + JBi-R'mj + fat: where Hat is the return of stock ":5 at time t, Rm; ...

. Current Attempt in Progress Use the formula to find the standard error of the distribution of differences in sample means, x1 - X2. Samples of size 115 from Population 1 with mean 92 and standard ...

Hi all I need help with this part 2! . Part II: A clinician was interested in determining whether psychotherapy would reduce symptoms associated with Antisocial Personality Disorder (ASPD) among a s...

According to an existing study, there is a trend towards vehicles using Premium Fuel (Fueltype "P"). A report based on a survey conducted a couple of years ago found that only 30% of cars used pre...

. The population proportion is 0.45. What is the probability that a sample proportion will be within 10.01 of the population proportion for each of the following sample sizes? Round your answers to ...

. Question Completion Status: QUESTION IT We have the following two regression models to predict college GPA Model I Model 2 >summary(modell) > summary(model2) Call: Call: Im(formula = colgpa ...

To determine whether a new sleeping pill has an affect that varies with dosage, a researcher randomly assigns adult insomniacs, in equal numbers, to receive either 4 or 8 grams of the sleeping pill. T...

this Is a continuation of the study one paper attached. please write . as if you are continuing The next part of the paper I have attached. reference it to answer the following question. Please read t...

2. Distribution of scores vs. distribution of means a) Roll your two dice 3x , recording the sum for each role as you did in Question 1. However, this time, instead of taking the sum of each rol...

34 percent of the customers of a fast food chain order the Whopper, French fries and a drink. A random sample of 19 cash register receipts is selected. What is the probability that eight receipts will...

A new sports car model has defective brakes 4 percent of the time and a defective steering mechanism 6 percent of the time. Let's assume (and hope) that these problems occur independently. If one or t...

The president of a large automobile sales agency tells his sales manager that he is pleased with the increase over last year in the number of cars sold per day but not with the net profit per car sold...

Please answer 1-5 questions. I attached the histogram and prob work sheet.. Independent Lab Assessment Questions For questions 1 through 5, use the following information to answer the question: Daily ...

pa Question 1 has 3 parts to it. Please circle final answers. I only need the answers. Question 2 . Consider the following data: - 3, 11, -4, 3, -2, -5 Copy Data Step 1 of 3: Calculate th...

(5 marks) The distribution of the number of Hallowe'en treats consumed on Hallowe'en night has a mean of 10 and a standard deviation of 6. What is the Z score for a child eating 20 treats? What is the...

. Problem 3 We consider a group of 4 students among which a rumour is spreading. At time 0, only one student is aware of the rumour. Whenever two students meet, if one is aware of the rumour and not...

. Problem 2 A frog is in a pond with 5 water lilies numbered from 1 to 5. With exponential rate 1, the frog leaves its current water lily, chooses a new one uniformly among the four others and jumps...

. Problem 1 In a hospital, patients get treated for two different diseases, labelled 1 and 2. Each patient is independently treated such that the time to get fully treated and leave the hospital is ...

Class records at Rockwood College indicate that a student selected at random has probability of 0.77 of passing French 101. For the student who passes French 101, the probability is 0.90 that the stud...

. Phil Dunphy has two appointments to show a house to prospective buyers. The ﬁrst appointment is at 3 PM and the second is at 3:30 PM. The amounts of time that appointments last are independent e...

A computer manufacturing company claims that only 7.3% of their computers are returned. Kelly thinks that the company is misrepresenting the true proportion of computers that are returned, and that th...

DO NOT JUST COPY AND PASTE OTHER ANSWERS THAT ARE FOUND ON THIS WEBSITE PLEASE OR YOU WILL RECIEVE A THUMBS DOWN. SHOW SCREENSHOT OF HOW IT SHOULD BE SET UP AND SOLVED IN EXCEL USING EXCEL SOLVER!!!!!...

Based on data from the Statistical Abstract of the United States, 112th edition, only about 14% of senior citizens (65 years old or older) get the flu each year. However, about 24% of the people under...

. The mother of a teenager has heard a claim that 29% of teenagers who drive and use a cell phone reported texting while driving. She thinks that this rate is too high and wants to test the hypothes...

. A manufacturer withdrew Drug V from the market after a study revealed that its use was associated with an increase in the risk of heart attack. The experiment was placebo-controlled, randomized, a...

Previous surveys estimated that 37% of students use the college gym. The manager would like to verify this estimate within plus or minus 0.08. At a 90% level of confidence, how large a sample is requi...

A company involved in vocational training wants to evaluate three learning methods in a supply management course. The course focuses on the use of application software and problem solving management. ...

Allergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at Allergy Institute did a study to determine the effects of washing the oil off within 5 minutes of expos...

We want to estimate the population mean within 10, with a 80% level of confidence. The population standard deviation is estimated to be 27. How large a sample is required? (Round the intermediate calc...

You want to know if it is better to offer a "buy 2 get one free" discount or a "25% off on every product from our brand" discount" in Madison-area drugstores. You split the dr...

Out of a sample of 480 students, 310 indicated that they preferred chocolate ice cream to vanilla ice cream. a. Estimate the value of the population proportion of those who preferred chocolate ice ...

According to a survey conducted by the firm SOM, research and surveys, on behalf of the newspaper LES AFFAIRES and aimed at clarifying some of the main concerns of SME managers in Quebec, we obtained ...

We want to compare three groups of workers working in the field of machining and manufacturing of mechanical parts with respect to the results of a form perception test. The results obtained from a ra...

We want to compare the average weekly expenditure for food consumption among families in three regions with substantially the same socioeconomic characteristics. A random sample of 9 families from eac...

1. Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one (USA Today). According to the survey, of...

. Exercice 5 Une variable aleatoire X a une moyenne de 1000 et un ecart-type de 30. a) Caracterisez la distribution de la moyenne d'un echantillon aleatoire de taille 64 de cette variable. b) Pour r...

Mr. Jack is considering the purchases of a dairy farm. He has records of the milk output on random days for 29 days. He is assured that milk production is normally distributed. He only wants to buy th...

2. Suppose that in a sample of 28 Moraine Valley students, the mean amount of time they say they spend studying for classes each week is 8.6 hours with a standard deviation of 1.3 hours. a) Calculate ...

Data available here: https://drive.google.com/drive/folders/1feSE_yueafXW1KCi6fFDKnG7rfDx5jdm?usp=sharing Please do questions with student ID ending with EVEN number . Problem 1. (30 points) Cons...

. Exercice 9 Deux cent personnes font la queue pour acheter un billet pour un concert rock. Vous voulez interviewer un echantillon de ces personnes. Expliquez comment vous pouvez selectionner un ech...

the questions are complete . HW Score: 51.04%, 6.13 of 12 S: Question 4, 9.2.7-T Part 1 of 6 points O Points: 0 of 1 Save A study was done on proctored and nonproctored tests. The results are show...

I decide to follow up the study to see if exercise has a negative effect on Super Smash Brother's Ultimate Performance. I recruit 30 Tuscaloosa Super Smash Brothers Ultimate Competitors. At the first ...

Browner and Newman (1987) discussed the importance of taking into account the entire clinical picture when taking into consideration the significance of the p-value, suggesting that the p-value for a ...

11.43 Below are data on truck production (number of vehicles completed) during the second shift at five truck plants for each day in a randomly chosen week. Research question: Are the mean production ...

Round principal and deposit amounts up to the cent. Finley wants to be able to buy a house in fifteen years; they think they will need to have $24,000 to use as a down payment. a. If Finley want...

The purpose of this analysis is to estimate measures of association and assess for confounding and effect modification for the relationship between race/ethnicity and unplanned hospitalizations in 200...

Larry wants to be able to buy a house; they think they will need to have at least $30,000 to use as a downpayment. For all parts of this problem, assume an APR of 3.9%. a. If they make deposits of $40...

. Question 2 (6 marks) We wish to prove (without using Theorem 2.5) that if A, B, and A + B are n x n idempotent matrices, then AB = BA = 0. (a) Show that AB + BA = 0. (b) By Theorem 2.2, there exis...

The following table reports row-relative frequencies of the data from a survey on the ownership of iPods among families with different levels of income. These frequencies are reported in the cluster b...

2. Without doing any calculations, match the dot plot to the corresponding mean and standard deviation on the right. a) mean = 26.25, standard deviation = 4.31 24 25 26 27 28 30 22 23 b) mean = 26.8, ...

Question 3 1 pts It is known that the return of an ongoing investment project is normally distributed with a standard deviation a and a coefficient of variation b%. A sample of n historical returns of...

Instructions provided below 1. G3t appropriate data for this task from any j0urnal or g0vernment website (ex. PSA). 2. Y0u will n3ed 2 variables, b0th numerical and at least 30 sample points for...

Below are data on truck production (number of vehicles completed) during the second shift at five truck plants for each day in a randomly chosen week. Research question: Are the mean production rates ...

Answer 15-18 (must show formula and interval). Section 7-3 Confidence Intervals and Sample Size for Proportions 383 14. Fighting U.S. Hunger In a poll of 1000 likely voters, How large a sample is nece...

Microtransaction Rate : GSG estimates that there is a 50% chance that at least 30% of the players would purchase at least one in-game cash item, but there is also an equal chance that the number would...

Course textbook: Program Evaluation An Introduction to an Evidence-Based Approach, 6ed. Authors: David Royse, Bruce A. Thyler, Deborah K. Padgett A Two week intervention is taking is place with a gr...

With a basic understanding of the deck of cards we can predict the probability of getting certain cards. Let us look at an example. What is the probability of getting an Ace? What is the proba...

A 0.1 significance level is used to test whether or not a house on average has 20 trick-or-treaters visit on Halloween. A random sample of 35 houses were selected and the number of trick-or-treaters...

Many business activities generate data that can be thought of as random. For example, a service manager at an auto shop needs to understand the data for cars coming in for services like oil change...

. 79. A small college has been accused of gender bias in its admissions to graduate programs. a. Out of 500 men who applied, 255 were accepted. Out of 700 women who applied, 240 were accepted. Find ...

Hello attached is my worksheet. I filled it out already with functions, but I can't figure out question number 5. I also need to put the functions I got into the Excel chart you see below. I can't see...

Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Number of classes: 8 Data Set: Reaction times(milliseconds) ...

Price of 2018 Honda Civic, 25K -75K miles 20990 25990 21590 22990 21590 20990 23990 22990 21990 23990 21590 20590 21990 21590 20590 22590 22590 22990 19990 21990 23990 23990 22590 above are the pri...

The College Board was interested in the study habits of students preparing to take the AP Exam this spring. They collected data from a random sample of 27 students which included the time a student st...

Question Which of the following frequency tables show a skewed data set? Select all answers that apply. Select all that apply: Value Frequency 0 2 1 11 2 30 3 22 4 15 5 12 6 6 7 1 8 1 Value ...

A company has two shifts - a day shift and a night shift. Production by the two shifts must meet the same specifications. The manager of the company believes that there is a difference in the proporti...

You collect the data and find the following frequencies: The Observed Frequencies: Perceived Masculinity By Facial Contrast for 120 Faces ...

You have heard of this phenomenon and want to see whether it is true that facial contrast affects perceived masculinity. You collect data on 120 faces, 60 of which have high contrast and 60 of which h...

If there are 90 total defects from 10 samples, each sample consisting of 35 individual items in a production process, what is the average fraction defective, p_bar, that can be used in a "p" chart for...

. lough - x Tiana Fairclough X om.google.com/u/0/c/NTEzNjg3NZE3MDc4/a/NTEzNjg3NZE3MTcx/details Tiana unit 1 math t x |You have been log 2. Solve the following inequality x' - 2x2 2 x -2 (4 marks) 23...

I need help with C. I'm not sure what formula to use on excel . 1.) Gather information from each group member about their 2 Truths and a Lie results. Fill in both tables. (If you don't have a 4th g...

SAS code : Data mydata ; set 'C:OneDrive\Documents\natl2017.sas7bdat' ; *Define the objects where data is located; keep GESTREC3 RF_GDIAB; run ; proc freq data=mydata; table GESTREC3*RF_GDIAB /...

A1 A2 A3 5 6 7 4 ...

. Suppose that a company produces products at two separate locations, Location A and Location B. The quality control team has found that 93% of the products made at Location A meet their quality sta...

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.3 years, and standard deviation of 0.6 years. If you randomly purchase 9 items, what is the probability tha...

. 2 points possible (graded) Consider a coin with bias P (heads) = p and two competing hypotheses. Null Ho : p = 0.5 and alternative H1 : p < 0.5. You toss the coin 4 times and observe 3 heads. a...

6. A company has collected performance concerns on daily basis to understand various aspects of this metric. The data corresponding to 13 days is shown below. The upper control limit for this metric i...

DATA . Question 1: This question is adapted from a recently published study by Wei, X et al (2023); Native language differences in the structural connectome of the human brain: Neuroimage 270 (202...

In this question, you will explore a new distribution called the uniform distri- bution and use R to conduction a simulation that demonstrates how the CLT works. A uniform random variable is a continu...

DFT Investments needed to market a new derivative financial instrument. The market research team found that the mean of the derivative is $175,820 with a standard deviation of $74,350. The team needed...

. Data was gathered for the amount of money a family had put aside for their annual vacation by taking a SRS of families. The data was entered into SPSS. The following tables were then generated. Ca...

for a) sed this property of exponential rv: if X, Y are independent exponential rv's with rates lambda1 and lamba2, and Z = min(X,Y), then Z is Exp(lambda1 + lambda2). Problem 1 111 a hospital, patien...

HELP ME. 1. Exactly 100 employees of a ﬁrm have each purchased one ticket in a lottery, with the drawing to be held at the ﬁrm's annual party. Of 80 men who purchased a ticket, 25 are single....

The percent of all individuals in the U.S. that feel liquid soap is the best type of soap is 30%. A group of 100 U.S. individuals were in a store purchasing soap and 35% preferred liquid soap. What wo...

This is a Minitab Assignment.. Part I: Review of determining probability using binomial and normal distributions. Recall our lab videos where we utilized the commands under Calc => Probability Dist...