If the t distribution is to produce an accurate probability figure, which of the following must be true?
A) the design is either an independent or a correlated samples design
B) sample size must be the same for both samples
C) both of the descriptive alternatives are correct
D) neither of the descriptive alternatives is correct.

Question

Quizplus · Accepted Answer

The t distribution's accuracy in producing a probability figure does not strictly depend on the design being independent or correlated samples, nor does it require the sample sizes to be the same for both samples. The key factor for the t distribution's applicability is the assumption of normally distributed data and, in some cases, equal variances when comparing two groups, rather than the conditions listed in the options.

If the T Distribution Is to Produce an Accurate Probability