Which of the following statements is true?
A) To find large differences between groups or strong correlations the sample size required is smaller than if you want to find small differences or weak correlations
B) Sample size that is required is unrelated to the size of correlations or the strength of differences
C) As sample size increases, the size of the confidence interval increases
D) Small differences or correlations are likely to be found with small samples

Question

Quizplus · Accepted Answer

Larger sample sizes are needed to detect small differences or weak correlations, while smaller sample sizes can suffice for large differences or strong correlations.

Which of the Following Statements Is True