Concept explainers
To explain what can the grocer conclude about the opinions of all his customers.
Answer to Problem 19E
No, the grocer cannot conclude.
Explanation of Solution
It is given in the question that some food retailers propose subjecting food to a low level of radiation in order to improve safety, but sale of such “irritated” food in order to opposed by many people. Suppose a grocer wants to find out what his customers think. Thus, we can say that the grocer cannot conclude about the opinions of all his customers because those who bothered to fill out the survey may be a biased sample.
Chapter 19 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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