Concept explainers
To explain confidence level.
Answer to Problem 58E
The confidence level is 82%
Explanation of Solution
Given:
Confidence interval for proportion:
0.565 < p < 0.695
Formula:
Sample proportion:
Confidence interval for proportion:
The sample proportion is,
Using the formula of confidence interval,
Therefore,
We need to determine the probability that,
Hence, confidence level is 82%
Chapter 8 Solutions
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