Determine the critical t-scores for each of the following conditions: a. One-tail test, = 0.05, and

Determine the critical t-scores for each of the following conditions:

a. One-tail test, α = 0.05, and n = 21

b. Two-tail test, α = 0.02, and n = 10

c. Two-tail test, α = 0.05, and n = 28

d. Two-tail test, α = 0.01, and n = 40