It currently takes users a mean of 37 minutes to install the most popular computer program made by RodeTech, a software design company. After changes have been made to the program, the company executives want to know if the new mean is now different from 37 minutes so that they can change their advertising accordingly. A simple random sample of 39 new customers are asked to time how long it takes for them to install the software. The sample mean is 34.7 minutes with a standard deviation of 6.7 minutes. Perform a hypothesis test at the 0.05 level of significance to see if the mean installation time has changed. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Hoμ Ha: M = 37 37

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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It currently takes users a mean of 37 minutes to install the most popular computer program made by
RodeTech, a software design company. After changes have been made to the program, the company
executives want to know if the new mean is now different from 37 minutes so that they can change
their advertising accordingly. A simple random sample of 39 new customers are asked to time how
long it takes for them to install the software. The sample mean is 34.7 minutes with a standard
deviation of 6.7 minutes. Perform a hypothesis test at the 0.05 level of significance to see if the mean
installation time has changed.
Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.
Hoμ
Ha: M
= 37
37
Transcribed Image Text:It currently takes users a mean of 37 minutes to install the most popular computer program made by RodeTech, a software design company. After changes have been made to the program, the company executives want to know if the new mean is now different from 37 minutes so that they can change their advertising accordingly. A simple random sample of 39 new customers are asked to time how long it takes for them to install the software. The sample mean is 34.7 minutes with a standard deviation of 6.7 minutes. Perform a hypothesis test at the 0.05 level of significance to see if the mean installation time has changed. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Hoμ Ha: M = 37 37
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