A professional employee in a large corporation receives an average ofμ=42.1 e-mails per day. Most of these e-mails are from other employees inthe company. Because of the large number of e-mails, employees findthemselves distracted and are unable to concentrate when they return totheir tasks. In an effort to reduce distraction caused by such interruptions,one company established a priority list that all employees were to usebefore sending an e-mail. One month after the new priority list was put intoplace, a random sample of 48 employees showed that they were receivingan average of x = 33.1 e-mails per day. The computer server through whichthe e-mails are routed showed that a=19.6. Use a 5% level of significanceto test the claim that there has been a change (either way) in the averagenumber of e-mails received per day per employee. What are the null andalternate hypotheses?O Ho:O Ho:O Ho:O Ho:O Ho:42.1 e-mails; H₁: u 42.1 e-mails42.1 e-mails; H₁: u> 42.1 e-mails42.1 e-mails; H₁: u> 42.1 e-mails42.1 e-mails; H₁: u = 42.1 e-mails42.1 e-mails; H₁: μ< 42.1 e-mails

Answered: Image /qna-images/answer/2eabb207-7789-4da7-83c4-edfd9217ea24.jpg

Answered: A professional employee in a large…

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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Jerry is considering opening a new ice cream store at a certain location on State Street in Madison. Jerry conducts some analysis and determines that a given location is acceptable only if the number of pedestrians passing the potential location averages more than 100 per hour. To check if this location is acceptable, Jerry records the number of pedestrians observed for each of 40 hours. Jerry finds that the average number of pedestrians that pass the potential location during each of the 40 hours he was observing, is 105.7 per hour. Jerry assumes that he knows the population standard deviation to be 16. Can Jerry conclude at the 1% significance level that the potential location for the ice cream store is acceptable? a. What is the correct set of hypotheses? Answer: Ho: u = 100 and H1: u> 100 v b. Determine the p-value Answer: 0.0122 c. Interpret the results Answer: There is not enough evidence d. Jerry is concerned with committing a Type II error. Determine the probability of Type II…
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