Homework Help is Here – Start Your Trial Now!
Math
Statistics
It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 minutes. Perform a hypothesis test at the 0.10 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. Answer Ho :μ = 13 Ha p 0 # O V O 13 Keypad Keyboard Shortcut: Tables

It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 minutes. Perform a hypothesis test at the 0.10 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. Answer Ho :μ = 13 Ha p 0 # O V O 13 Keypad Keyboard Shortcut: Tables

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
See similar textbooks
icon
Related questions
Question

SECTION 10.3

It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 minutes. Perform a hypothesis test at the 0.10 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. Answer Ho : μ = 13 Ha M O H A V 13 Tables Keypad Keyboard Shortcuts
Transcribed Image Text:It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 minutes. Perform a hypothesis test at the 0.10 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. Answer Ho : μ = 13 Ha M O H A V 13 Tables Keypad Keyboard Shortcuts
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
section 10.3
 
Step 3 of 3 :  
Draw a conclusion and interpret the decision.
 
 
 
It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 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 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 13 minutes and that RodeTech may need to change their advertising. 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 13 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 13 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 13 minutes and that RodeTech may need to change their advertising.
Transcribed Image Text:It currently takes users a mean of 13 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 13 minutes so that they can change their advertising accordingly. A simple random sample of 37 new customers are asked to time how long it takes for them to install the software. The sample mean is 12.0 minutes with a standard deviation of 2.7 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 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 13 minutes and that RodeTech may need to change their advertising. 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 13 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 13 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 13 minutes and that RodeTech may need to change their advertising.
Solution
Bartleby Expert
SEE SOLUTION
Follow-up Question

section 10.3

Step 2 of 3 :  
Compute the value of the test statistic. Round your answer to three decimal places.
 
 
 
Solution
Bartleby Expert
SEE SOLUTION
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
SEE MORE TEXTBOOKS