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hts to determine whether the mean wasted tone during an 8-hour less than the mean of 120 minutes reported in the article. Each person in a random sample of 10 employees is asked about daily wasted time at work ave to be guaranteed anonymity to obtain truthful responses. Suppose that the resulting data are as follows. 107, 111, 115, 129, 112, 133, 112, 112, 104, 127 USE SALT bute a 95% confidence interval to estimate the mean wasted time (in minutes) during an 8-hour workday for all employees of this company. (Round you t critical value) (√). (√)) t critical value) min pret your interval. dupon this sample, we can be 95% confident that the true mean wasted time during an 8-hour workday for all employees of her company is between th t critical value)( minutes and the upper value of S X

hts to determine whether the mean wasted tone during an 8-hour less than the mean of 120 minutes reported in the article. Each person in a random sample of 10 employees is asked about daily wasted time at work ave to be guaranteed anonymity to obtain truthful responses. Suppose that the resulting data are as follows. 107, 111, 115, 129, 112, 133, 112, 112, 104, 127 USE SALT bute a 95% confidence interval to estimate the mean wasted time (in minutes) during an 8-hour workday for all employees of this company. (Round you t critical value) (√). (√)) t critical value) min pret your interval. dupon this sample, we can be 95% confident that the true mean wasted time during an 8-hour workday for all employees of her company is between th t critical value)( minutes and the upper value of S X

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Many employers are concerned about employees wasting time by surfing the Internet and e-mailing friends during work hours. The article "Who Goofs Off 2 Hours a Day? Most Workers, Survey S summarized data from a large sample of workers. Suppose that the CEO of a large company wants to determine whether the mean wasted time during an 8-hour workday for employees of her company is less than the mean of 120 minutes reported in the article. Each person in a random sample of 10 employees is asked about daily wasted time at work (in minutes). Participants would probably have to be guaranteed anonymity to obtain truthful responses. Suppose that the resulting data are as follows. 107, 111, 115, 129, 112, 133, 112, 112, 104, 127 USE SALT (a) Compute a 95% confidence interval to estimate the mean wasted time (in minutes) during an 8-hour workday for all employees of this company. (Round your answers to two decimal places. X± (t critical value)). x + (t critical value))) min x = (t critical value) Interpret your interval. Based upon this sample, we can be 95% confident that the true mean wasted time during an 8-hour workday for all employees of her company is between the lower value of x = (t critical value)( X =(√) ₁ minutes and the upper value of X minutes. X
Transcribed Image Text:Many employers are concerned about employees wasting time by surfing the Internet and e-mailing friends during work hours. The article "Who Goofs Off 2 Hours a Day? Most Workers, Survey S summarized data from a large sample of workers. Suppose that the CEO of a large company wants to determine whether the mean wasted time during an 8-hour workday for employees of her company is less than the mean of 120 minutes reported in the article. Each person in a random sample of 10 employees is asked about daily wasted time at work (in minutes). Participants would probably have to be guaranteed anonymity to obtain truthful responses. Suppose that the resulting data are as follows. 107, 111, 115, 129, 112, 133, 112, 112, 104, 127 USE SALT (a) Compute a 95% confidence interval to estimate the mean wasted time (in minutes) during an 8-hour workday for all employees of this company. (Round your answers to two decimal places. X± (t critical value)). x + (t critical value))) min x = (t critical value) Interpret your interval. Based upon this sample, we can be 95% confident that the true mean wasted time during an 8-hour workday for all employees of her company is between the lower value of x = (t critical value)( X =(√) ₁ minutes and the upper value of X minutes. X
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