Which of the following are assumptions of the t test that must be met?
a. The data must be at least ordinal.
b. The dependent variable must be normally distributed.
c. Only two groups are compared.
d. All of these are assumptions that must be met for the t test.
D
If the data are nominal, or if the dependent variable is not normally distributed, the t test is inappropriate. The t test can only be done for two groups.
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