Answer the following statement(s) true (T) or false (F)
1. There are three different types of mean difference tests.
2. The t-test and z-test of means is appropriate for an independent variable that is ordinal or nominal and the dependent variable is interval or
ratio.
3. The .01 level is the only appropriate level of significance for a t-test.
4. For a t-test or z-test to be calculate, the independent samples both have to be randomly selected.
5. If the standard error of the difference between two samples is equal a pooled variance estimate formula would be used.
1.False
2.True
3.False
4.True
5.True
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