Concept explainers
To find: Whether the true proportion of adult who say that they use Twitter or other series is different from 0.17 or not.
Answer to Problem 55E
No, it is not different from 0.17
Explanation of Solution
Given:
The confidence interval is (0.123, 0.177).
From the above provided confidence interval it is clear that 0.17 lies in the interval. Thus, there is insufficient evidence to conclude that the true proportion of adult who say that they use Twitter or other series is different from 0.17.
Chapter 9 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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