Concept explainers
(a)
To explain are the conditions for creating a confidence interval satisfied.
(a)
Answer to Problem 12E
All conditions are met.
Explanation of Solution
It is given in the question that, consumer reports published their study of bacterial contamination of chicken in the U.S. Thus, we have,
Let us first check the conditions for the following as:
Random condition: It is satisfied as it is assumed that the sample is randomly selected.
Normal condition: It is satisfied as,
Thus, all the conditions are met.
(b)
To construct a
(b)
Answer to Problem 12E
Explanation of Solution
It is given in the question that, consumer reports published their study of bacterial contamination of chicken in the U.S. Therefore, now, to find the confidence interval we will use the calculator
Thus, the confidence interval will be as:
(c)
To explain what your confidence interval says about chicken sold in the U.S.
(c)
Explanation of Solution
It is given in the question that, consumer reports published their study of bacterial contamination of chicken in the U.S. and the confidence interval is
Chapter 19 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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