9A.

The mode of the numbers below is 10, 7, 7, 5, 8, 3, 4, 2

1.8

2.6

3.7

4.5.75

B. For a within-subjects study evaluating the mean difference between two treatment conditions, the appropriate hypothesis test is

1. 1.independent-measuresttest.2.single-factor analysis of variance.3.chi-square test for independence.4.repeated-measuresttest.

C. If a distribution is asymmetrical through having more scores in one of the tails it would be described as

1. 1.skewed.2.kurtotic.3.normal.4.bimodal.

D.In a hypothesis test, one hypothesis always states that there is no treatment effect, no mean difference, or no relationship. This hypothesis is called

1. 1.the scientific hypothesis.2.the alternative hypothesis.3.the negative hypothesis.4.the null hypothesis.