To compute the test statistic or t value,what must first be calculated to approximate the sample size?
A)pooled variance
B)standard deviation
C)mean score
D)degrees of freedom

Question

Quizplus · Accepted Answer

The degrees of freedom must first be calculated in order to compute the test statistic or t value. This is because the number of degrees of freedom affects the probability distribution used to calculate the t value. Pooled variance, standard deviation, and mean score are all important measures in hypothesis testing, but they are not directly used to calculate the t value.

To Compute the Test Statistic or T Value,what Must First