Which of the following describes the function of a confidence interval?
A)It uses a sample mean to estimate the corresponding population mean.
B)It uses a population mean to predict a sample mean.
C)It uses a level of confidence to estimate a sample mean.
D)It uses the sample mean to determine a level of confidence.

Question

Which of the following describes the function of a confidence interval?​
A)​It uses a sample mean to estimate the corresponding population mean.
B)​It uses a population mean to predict a sample mean.
C)​It uses a level of confidence to estimate a sample mean.
D)​It uses the sample mean to determine a level of confidence.

Quizplus · Accepted Answer

A confidence interval uses a sample mean to estimate the corresponding population mean, along with a level of confidence to provide a range of likely values for the population parameter. Option B is incorrect as the purpose of a confidence interval is not to predict a sample mean. Option C is partially correct as a level of confidence is needed, but it is not used to estimate a sample mean. Option D is incorrect as the sample mean is not used to determine a level of confidence, but rather the opposite is true - a level of confidence is used to determine the width of the interval around the sample mean.

Which of the Following Describes the Function of a Confidence