What is the purpose of calculating a confidence interval?
A) To provide a range of values that has a certain large probability of containing the sample statistic of interest.
B) To provide a range of values that, with a certain measure of confidence, contains the sample statistic of interest.
C) To provide a range of values that, with a certain measure of confidence, contains the population parameter of interest.
D) To provide a range of values that has a certain large probability of containing the population parameter of interest.

Question

Quizplus · Accepted Answer

The purpose of calculating a confidence interval is to provide a range of values that, with a certain measure of confidence (usually expressed as a percentage, such as 95% or 99%), contains the population parameter of interest (e.g., mean, proportion). This range gives an estimate of where the true population parameter is likely to lie.

What Is the Purpose of Calculating a Confidence Interval