pearmouse140Lv1
14 Dec 2021
Problem 111
Page 564
Section: HOMEWORK
Chapter 10: HYPOTHESIS TESTING WITH TWO SAMPLE
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14 Dec 2021
Given information
We are interested in whether children’s educational computer software costs less, on average than children’s entertainment software. Thirty-six educational software titles were randomly picked from a catalog. The mean cost was 
with a standard deviation of 
. Thirty-five entertainment software titles were randomly picked from the same catalog. The mean cost was 
with a standard deviation of 
Decide whether children’s educational software costs less, on average than children’s entertainment software.
Step-by-step explanation
Step 1.
The hypothesis testing in the required format as given in the problem is as follows:
The subscripts are:
for the mean cost of children's educational software
for the mean cost of children's entertainment software.
The null hypothesis can be stated as follows:
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
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