1. If a researcher determined that df = 9 and chose the level of confidence to be 95%, what would be the critical value for a related-samples t test?

Select one:

a. 1.860

b. 2.306

c. 1.833

d. 2.282

2. A researcher tests weight loss on participants on and off a new diet plan. It was hypothesized that participants would lose more weight (in pounds) while on the diet plan. If the researcher tested this hypothesis at .05 level of significance (two-tailed test), he computes a t=2.739 a sample of 16 participants. What would be the proportion of variance using the formula for ²?

a. .57

b. .81

c. .33

d. .65

3. When reporting the type of t test computed in APA formate, we report it in the data analysis section not in the results section.

a. true

b. false

4. A researcher computes a relative samples t test with a sample of 120 participants. With this large of a sample size, which assumption of the related samples t test becomes less critical?

a. independent within groups

b. normality

c. random sampling

d. equal differences within groups