If I wanted to estimate the variability of sample means , I would calculate ______.
A) the standard error of the mean
B) the standard deviation (s)
C) z-scores
D) the population mean (μ)

Question

If I wanted to estimate the variability of sample means  , I would calculate ______.
A) the standard error of the mean 
B) the standard deviation (s) 
C) z-scores 
D) the population mean (μ)

Quizplus · Accepted Answer

To estimate the variability of sample means, we need to calculate the standard error of the mean. The formula for the standard error of the mean is s/√n, where s is the sample standard deviation and n is the sample size. This gives us an estimate of the variability of means if we were to take many random samples from the population.

If I Wanted to Estimate the Variability of Sample Means