It currently takes users a mean of 44 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 44 minutes so that they can change their advertising accordingly. A simple random sample of 51 new customers are asked to time how long it takes for them to install the software. The sample mean is 47.8 minutes with a standard deviation of 10.2 minutes. Perform a hypothesis test at the 0.10 level of significance to see if the mean installation time has changed. Step 3 of 3: Draw a conclusion and interpret the decision. Answer Tables Keypad Keyboard Shortcut O We reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. O We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. O We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising.
It currently takes users a mean of 44 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 44 minutes so that they can change their advertising accordingly. A simple random sample of 51 new customers are asked to time how long it takes for them to install the software. The sample mean is 47.8 minutes with a standard deviation of 10.2 minutes. Perform a hypothesis test at the 0.10 level of significance to see if the mean installation time has changed. Step 3 of 3: Draw a conclusion and interpret the decision. Answer Tables Keypad Keyboard Shortcut O We reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. O We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. O We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44 minutes and that RodeTech may need to change their advertising.
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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Question
Transcribed Image Text:It currently takes users a mean of 44 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 44 minutes so that they can change their advertising accordingly. A
simple random sample of 51 new customers are asked to time how long it takes for them to install the software. The sample mean is 47.8 minutes with a standard
deviation of 10.2 minutes. Perform a hypothesis test at the 0.10 level of significance to see if the mean installation time has changed.
Step 3 of 3: Draw a conclusion and interpret the decision.
Answer
Tables
Keypad
Keyboard Shortcuts
O
We reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44
minutes and that RodeTech may need to change their advertising.
O
We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44
minutes and that RodeTech may need to change their advertising.
We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from
44 minutes and that RodeTech may need to change their advertising.
We reject the null hypothesis and conclude that there is insufficient evidence at a 0.10 level of significance that the new mean installation time is different from 44
O
minutes and that RodeTech may need to change their advertising.
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