What assumption is necessary in order to perform a t procedure?
A)The data are normal.
B)The data are approximately normal.
C)The data are uniform.
D)None of the above

Question

Quizplus · Accepted Answer

The t procedure assumes that the data are approximately normally distributed. While it is not strictly necessary for the data to be perfectly normal, if the data deviate too much from normality, the t procedure may not be accurate. Therefore, it is always a good idea to check for normality before using the t procedure.

What Assumption Is Necessary in Order to Perform a T