A random sample of employees participating in a company fitness program were asked how many days they logged an exercise activity in the past month. Their responses are reported in the histogram below. 10+ 8. 6. 4 7. 10 13 16 19 Number of days Based on the histogram above, what is the class width? Class width = days The sample size is the total frequency of employees represented in the histogram. Find the sample size. Sample size - employees Submit Question Frequency

Q: 5. Suppose JP performs the hypothesis test Ho: u = 70 versus H1: u 70. We find a 96% confidence…

A: Given , Hypothesis : H0 : μ = 70  H1 : μ ≠ 70  A 96% confidence interval for population mean (μ) is…

Q: According to a report done by S&J Power, the mean lifetime of the light bulbs it manufactures is 45…

A: Given that  Sample size n=90 Sample mean =44 Population standard deviation =7

Q: (c) If the confidence levels were 98% rather than 80%, would the margin of error be larger or…

A: The confidence levels are 98% and 80%.

Q: 4. A recent study of 19 students of San Rafael College showed that the mean of the distance they…

A:

Q: The accompanying table shows the maximum weights​ (in kilograms) for which one repetition of a half…

A: Introduction: The independent variable is the maximum weight (kilograms) for which an international…

Q: The claim is that for 7 AM body temperatures of males​, the mean is less than 98.6°F. The…

A:

Q: The weight of frogs in grams in a marsh population are normally distributed with mean (u) equal to…

A: Let X denotes the weight of frogs. Given that X follows N(mean = 23, SD = 1.3) then Z = (X -…

Q: A. All values between 50 to 60. B. All values less than 30. C. All values NOT between 40 and 50

A:

Q: In a study, the data you collect is standardized exam score . What type of data is this? O…

A:

Q: Your friend offers to place a bet with you. He will pay you $2 if your favorite sports team wins the…

A: Given that, Your friend offers to place a bet with you. He will pay you $2 if your favorite sports…

Q: Calculate the mean age and standard deviation of the workers  b)  Draw a histogram and determine…

A: Given data represents the age distribution for a sample of computers in a lab.

Q: Five hundred and eleven (511) homes in a certain southern California community are randomly surveyed…

A: Let X be the  number met the minimum recommendations for earthquake preparedness n be the homes in a…

Q: The following Levey-Jennings Chart indicates: * CONTROL 220 215 - 210 +2 SD 205 - 200 mean 195 190…

A: Solution: A Levey-Jennigs Chart is given.

Q: Salary    Education 40    3 53    4 80    6 42    2 70    5 50    4 110    8 38    0 42    3 55    4…

A: The independent variable is Education. The dependent variable is Salary. We have to find the…

Q: 4. Rosa reads an article in a magazine that says 37% of people talk to their pets on the answering…

A: It is given that  Sample size n = 150 Number of people talk that way, X = 51 Level of significance =…

Q: Use the given information to find the number of degrees of freedom, the critical values x and xế,…

A: From the provided information, Sample size (n) = 20 Standard deviation (s) = 0.28 mg Confidence…

Q: (1) According to your roommate, they have inherited a special coin from their great-grandmother…

A:

Q: repeated-measures study comparing two treatments with n = 4 participants produces MD = 2 and s2 = 25…

A:

Q: The relationship between "strength" and "fineness" of cotton fibers was the subject of a study that…

A:

Q: Find the regression equation, letting overhead width be the predictor (x) variable. Find the best…

A: For the given data Find the regression equation

Q: The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive…

A: For the given data Find The equation of the line of best fit = ? se2 = ?

Q: Area below: Work: Closest area on Table: Z-Scores: and Final Answers: and Work: and

A:

Q: Price    Age    Mileage 13590    6    61485 13775    6    54344 22991    1    8246 15303    4…

A: The independent variables are Age, Mileage. The dependent variable is Price. We have to find the…

Q: A random survey of enrollment at 35 community colleges across the United States yielded the…

A: The random variable enrollment follows normal distribution. We have to construct 95% confidence…

Q: sample statistics are from independent random samples. P, =P2, a = 0.10 x, = 108, n, = 128 and x, =…

A: According to guideline we solve first three subparts only when given multiple subparts.

Q: 1. Correlation basics Which of the following statements about correlation are true? Check all that…

A: We have given the following statement about correlation.  Note: According to Bartleby expert…

Q: research team is working on a project to study the time (in seconds) for high school male runners to…

A: According to guideline we solve first three subparts only when given multiple subparts.

Q: Gorillas live in communities called "troops." Jane examines a SRS of 36 gorilla troops in the wild…

A: Given that  Sample size n =36 Sample mean =14.3 Population standard deviation =9.75

Q: researcher wants to estimate the average amount of calories in a large French Fries order in…

A:

Q: 3. When programming from a terminal, one random variable of concern is the response time in seconds.…

A:

Q: Hypotheses for a test are given, as well as some information about the sample. Indicate where the…

A: It is given that the null and alternative hypotheses are: H0: ρ=0 vs Ha: ρ<0

Q: A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in Texas…

A: There are two independent samples which are Texas and Virginia. We have to test whether the mean…

Q: 00 ト d H_a: p < 0.15 Answered Resa Question 7 Suppose the p-value is 0.075 at a = 0.05. What is…

A:

Q: Which statement is not correct for multiple regression model?

A: Multiple regression is an extension of the simple regression model.

Q: Claim: Fewer than 93​% of adults have a cell phone. In a reputable poll of 1041 ​adults, 88​% said…

A: It is given that Sample size n = 1041 Sample proportion p̂ = 0.88 Population proportion p = 0.93

Q: (a) State the hypotheses used in performing this test. (b) Using the output above, state the…

A: Given: According to R-output, test statistic t=-1.6659 df=19 p-value=0.1121

Q: The number of initial public offerings of stock issued in a 10-year period and the total proceeds of…

A: The independent variable is Issues. The dependent variable is Proceeds. We have to find the…

Q: mmary statistics in the table are for a comparison of females and males on the number of hours a day…

A: Given that  Sample sizes n1 =679 , n2=617 Sample standard deviation s1=2.72 s2=2.46

Q: A randomized prospective study is conducted to estimate the association between taking a drug and…

A:

Q: The time to failure of a component is Weibull distributed with a scale parameter of 2000 hours,…

A: Given that the time to failure of a component is Weibull distributed with a scale parameter of 2000…

Q: Consider the 4x3 game depicted below. A f1,2 1,2 0,31 B 4,0 1,3 0,2 с 13,1 2,1 1,2 D Lo, 2 0,1 2,4J…

A: Note: As per the guidelines, in case of multiple subparts, answer to first three subparts will be…

Q: Are couples that live together before they get married more likely to end up divorced within five…

A:

Q: Assume the samples are random and independent, the populations are normally distributed, and the…

A: For the given data Perform Anova single factor

Q: What is the probability that on a particular day, the trading volume will be less than 2.5 billion?…

A: We have given that  X~N( μ , ?2 ) μ = 5   , ? = 1.8 Z-score =( x - μ )/?

Q: Imagine a taste test done to compare two different soft drinks. In the test, 50 people taste both…

A:

Q: Question 12 You wish to estimate the average weight of frogs in a certain pond. You plan to randomly…

A: We have given that, Margin of error (E) = 0.25, population standard deviation (σ) = 1.3 and…

Q: 2. A pharmaceutical company claims that their pill relieves heartburn in over 90% of the people who…

A: Given that, a pharmaceutical company claims that their pill relieves heartburn in over 90% of the…

Q: Suppose the following table was generated from a sample of 20 CEOS relating annual salary to years…

A:

Q: Suppose you want to create a confidence interval for the number of almonds contained in a certain…

A: 13) The confidence level is 0.99, the population standard deviation is 2.15 and the margin of error…

Q: We have created a 95% confidence interval for μ with the result (148, 196). What conclusion will we…

A: We have created a 95% confidence interval for μ with the result (148, 196). What conclusion will we…