With a one-sample t test, the value of t is
A) always positive.
B) positive if the sample mean is too small.
C) negative whenever the sample standard deviation is negative.
D) positive if the sample mean is larger than the hypothesized population mean.

Question

Quizplus · Accepted Answer

The value of t in a one-sample t test represents the difference between the sample mean and the hypothesized population mean in units of the standard error of the mean. If the sample mean is larger than the hypothesized population mean, this difference will be positive and therefore t will be positive. Conversely, if the sample mean is smaller than the hypothesized population mean, t will be negative. Therefore, the correct choice is D.

With a One-Sample T Test, the Value of T Is