
Concept explainers
To evaluate: The validity of the information and conclusion.

Answer to Problem 3CYU
The data is not biased and the conclusion is valid.
Explanation of Solution
Given information:
A radio station is considering changing its format. It mails 1000 surveys to randomly selected houses within their listening area. They receive 750 responses.
Calculation:
From the given data it can be observed that the sample is large enough, reputable and is not biased since they are listeners who are chosen randomly.
Since, the highest percentage of responses is for rap/hip-hop so the data also support the conclusion. Hence, the conclusion is valid.
Hence,
The data is not biased and the conclusion is valid.
Chapter 12 Solutions
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