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, SurveySays" 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 employeesof 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). Participantswould be guaranteed anonymity to obtain truthful responses. Suppose the resulting data are as follows.133, 82, 97, 123, 109, 131, 77, 120, 84, 132(a) Calculate the point estimate (in minutes) for the population mean.108.8✔ min(b) Assume that the population standard deviation is known to be a = 54.8 minutes. We would like to estimate the population mean with 95% confidence. Calculate the margin of error (inminutes) of the point estimate. (Use a table or technology. Round your answer to three decimal places.)34.621X min(c)Find a 95% confidence interval. (Round your answers to three decimal places.)143.421 X min74.179

Given sample is,133, 82, 97, 123, 109, 131, 77, 120, 84, 132Sample size, n = 10Using formulas,Margin…

Answered: Many employers are concerned about…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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