Sample size is influenced by which of the following?
A) confidence level changes
B) population variability
C) precision level changes
D) A and B
E) A, B, and C

Question

Quizplus · Accepted Answer

Sample size is influenced by all of the listed factors.

A) Confidence level changes: The higher the desired confidence level, the larger the necessary sample size.

B) Population variability: The greater the variability within the population, the larger the necessary sample size.

C) Precision level changes: The smaller the desired margin of error or level of precision, the larger the necessary sample size.

Sample Size Is Influenced by Which of the Following