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The director of a factory believes that the average time that abours spend on their cellphone calls is less than 35.1 minutes per working shift. A sample size of 45 is monitored and found that the average time spent on cellphone calls is 25.7 minutes. There is no previous record on population standard deviation. The sample standard deviation is computed and found to be s-91.5 mins. With a significance of 0.025, test the claim about the time spent on cellphone calls. O a. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift. Ob. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O c. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O d. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift.

The director of a factory believes that the average time that abours spend on their cellphone calls is less than 35.1 minutes per working shift. A sample size of 45 is monitored and found that the average time spent on cellphone calls is 25.7 minutes. There is no previous record on population standard deviation. The sample standard deviation is computed and found to be s-91.5 mins. With a significance of 0.025, test the claim about the time spent on cellphone calls. O a. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift. Ob. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O c. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O d. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift.

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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The director of a factory believes that the average time that labours spend on their cellphone calls is less than 35.1 minutes per working shift. A sample size of 45 is monitored and found that the average time spent on cellphone calls is 25.7 minutes. There is no previous record on population standard deviation. The sample standard deviation is computed and found to be s = 91.5 mins. With a significance of 0.025, test the claim about the time spent on cellphone calls. O a. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift. O b. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O c. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O d. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift.
Transcribed Image Text:The director of a factory believes that the average time that labours spend on their cellphone calls is less than 35.1 minutes per working shift. A sample size of 45 is monitored and found that the average time spent on cellphone calls is 25.7 minutes. There is no previous record on population standard deviation. The sample standard deviation is computed and found to be s = 91.5 mins. With a significance of 0.025, test the claim about the time spent on cellphone calls. O a. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift. O b. Fail to reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O c. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is more than 35.10 minutes per working shift. O d. Reject the null hypothesis and conclude that the average time that labours spend on their cellphone calls is not more than 35.10 minutes per working shift.
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