Concept explainers
To construct: and interpret a 95 percent interval for
Answer to Problem 25E
(0.100, 0.382)
Explanation of Solution
Given:
Formula used:
Sample proportion
Confidence interval for
Lower part is
Upper part is
Calculation:
Sample proportion
For confidence interval
Confidence interval for
By calculating the proportion difference, it is 95 percent confident that the proportion difference between 0.100 and 0.382
Chapter 10 Solutions
The Practice of Statistics for AP - 4th Edition
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