Which of the following factors would be used to determine sample size?
A)confidence level
B)the required precision (margin of error)
C)the degree of variation in the population as measured by $\sigma$
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

All the listed factors (confidence level, required precision or margin of error, and the degree of variation in the population) are crucial in determining the appropriate sample size for a study. The confidence level indicates how sure you want to be about the results, the margin of error defines the range within which the true value is expected to lie, and the degree of variation (often represented by the population standard deviation) affects how large a sample is needed to accurately estimate the population parameter.

Which of the Following Factors Would Be Used to Determine σ\sigmaσ

Which of the Following Factors Would Be Used to Determine $\sigma$