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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 .
Step-by-step explanation
Step 1.
The subset of a population is a sample. The samples are used for estimating the parameters as sample sizes are finite are easy to handle.
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