Which of the following statistical distributions is used when estimating the population mean when the population variance is unknown?
A)Student t distribution
B)Standard normal distribution
C)Chi-square distribution
D)None of these choices are correct.

Question

Quizplus · Accepted Answer

The Student t distribution is used when estimating the population mean when the population variance is unknown. The distribution accounts for the added uncertainty introduced by estimating the population standard deviation from the sample standard deviation. The other distributions listed are not directly used for this purpose.

Which of the Following Statistical Distributions Is Used When Estimating