The t-stat, a specific instance of a test statistic, is used to evaluate a null hypothesis concerning which population parameter of a random variable?
A) The variance
B) The r-squared
C) The size of the sample
D) The mean

Question

Quizplus · Accepted Answer

The t-statistic is used to evaluate a null hypothesis about the mean of a random variable, making the correct answer choice D. Options A, B, and C are not the parameter that is tested using a t-statistic.

The T-Stat, a Specific Instance of a Test Statistic, Is