Concept explainers
To find: The
Answer to Problem 3.1CYU
The sample size is 683.
Explanation of Solution
Given:
Population proportion
Margin of error ( E ) = 3% = 0.03
Confidence level = 95%
Formula used:
The formula to compute the sample size is:
Calculation:
From the standard normal table, the z-score at 95% confidence level is 1.96.
The sample size is calculated as:
Thus, the required sample size is 683.
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
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