Question

which of the following statements is not true?
the two - dependent - sample test similar to the one - sample test.
paired t - test can be used for the two - dependent - sample test.
the null hypothesis for the two - dependent - sample test: the mean difference is zero.
the two - dependent - sample test compares the mean scores of two groups.

Explanation:

• The two - dependent - sample test is not similar to the one - sample test. The one - sample test is used to compare a sample mean to a known population mean. The two - dependent - sample test (paired t - test) is used to compare the means of two related samples.
• Paired t - test is a common method for the two - dependent - sample test.
• The null hypothesis for the two - dependent - sample test is that the mean difference between the two related samples is zero.
• The two - dependent - sample test does compare the mean scores of two related groups.

Answer:

The two - dependent - sample test similar to the one - sample test.