When using the independent t-test which assumption(s) should be made?
A) Normally distributed sample
B) Homogeneity of variance
C) Data at least categorical
D) a and b

Question

Quizplus · Accepted Answer

Both assumptions of normal distribution of sample and homogeneity of variance should be made when using the independent t-test. Assumption C, that the data is categorical, is not relevant to the t-test.

When Using the Independent T-Test Which Assumption(s) Should Be Made