Which of the following estimated population proportions would require the largest size sample to estimate it with a specified degree of precision and confidence?
A)0.50
B)0.40
C)0.10
D)0.90
E)1.00

Question

Quizplus · Accepted Answer

The sample size required is largest when the population proportion is 0.50 because the variability (p(1-p)) is maximized at this value, leading to a larger sample size for a given level of precision and confidence.

Which of the Following Estimated Population Proportions Would Require the Largest