If we are interested in estimating the population mean based on a sample from a population for which we know neither the mean nor the standard deviation, the critical value will be a t value from the t- distribution.

Question

Quizplus · Accepted Answer

When estimating a population mean from a sample without knowing the population standard deviation, the t-distribution is used because it accounts for the added uncertainty of estimating the population standard deviation from the sample.

If We Are Interested in Estimating the Population Mean Based