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18 Nov 2021
Problem 45
Page 718
Section: Practice
Chapter 13: F DISTRIBUTION AND ONE-WAY ANOVA
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18 Nov 2021
Given information
Two coworkers commute from the same building. They are interested in whether or not there is any variation in the time it takes them to drive to work. They each record their times for 
commutes. The first worker’s times have a variance of 
. The second worker’s times have a variance of 
. The first worker thinks that he is more consistent with his commute times and that his commute time is shorter.
Level of significance 
is 
that is equal to 
.
Step-by-step explanation
Step 1.
The null hypothesis states that the population parameter is equal to the hypothesized value. The alternative hypothesis states that the parameter is greater than less than or not equal to the hypothesized value.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
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