Concept explainers
(a)
To explain why you do not have enough information to give confidence intervals for these two age groups separately.
(a)
Explanation of Solution
Now, we do not have enough information to give confidence intervals for these two age groups separately because to construct a confidence interval assuming that the confidence level is known, we require the knowledge of the sample proportion and the
(b)
To explain do you think a
(b)
Answer to Problem 43E
Explanation of Solution
Since, in the question we are decreasing the sample size because the number of adults aged
Chapter 8 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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