What information can a confidence interval provide that a p-value alone cannot?
A)The direction of a difference or relationship, if one is concluded to exist.
B)The amount of variability in the results.
C)The actual size of an effect such as relative risk of heart attacks.
D)All of the above.

Question

Quizplus · Accepted Answer

A confidence interval provides information on the amount of variability in the results and the actual size of an effect such as relative risk of heart attacks, which a p-value alone cannot provide. Additionally, a confidence interval can provide information on the direction of a difference or relationship, if one is concluded to exist.

What Information Can a Confidence Interval Provide That a P-Value