To estimate how much the means of a variety of like samples drawn from the same population might vary,what statistic is often used?
A)standard deviation of the mean
B)variance of the mean
C)standard error of the mean
D)relative error of the mean

Question

Quizplus · Accepted Answer

The standard error of the mean (SEM) is often used to estimate how much the means of a variety of like samples drawn from the same population might vary. SEM is the standard deviation of the sample means, and it is used to quantitatively express the uncertainty associated with the sample mean. It takes into account both the variability within each sample and the sample size. A smaller SEM indicates less variation in the means of different samples and greater precision in estimating the population mean.

To Estimate How Much the Means of a Variety of Like