Concept explainers
The hypothesis test used to test the claim that TV commercials are louder than their surrounding programs.
Explanation of Solution
Given:The data of 50 randomly selected commercials in a given week are collected. With the television volume at a fixed setting, the maximum loudness in first 30 seconds of regular programs and commercials.
A paired t test is used when the difference between two variables for same subject is the parameter of interest.
Here we are measuring the loudness in TV commercials and regular programs. So the best method to verify the given statement will be to use the paired t test.
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