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 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

3. When computing a related samples t test, what is the formula for computing the degrees of freedom?