Which of the following is not an assumption of the t-test?
A)The data should be ordinal or nominal.
B)The population distribution of scores should be symmetrical.
C)The population mean ($\mu$)is known,but the population standard deviation ($\sigma$)is not known.
D)The sample size is typically less than 30.

Question

Quizplus · Accepted Answer

The t-test assumes that the data is interval or ratio, not ordinal or nominal.

Which of the Following Is Not an Assumption of the T-Test