Using Table B in Appendix C of your textbook, find the critical t values for each of the following hypothesis tests:

1. One-tailed test, lower tail critical; α = .01 , n₁ = 15; n₂ = 15

2. One-tailed test, lower tail critical; α = .05, n₁ = 18; n₂ = 21

3. One-tailed test, upper critical; α = .01, n₁ = 20; n₂ = 16

4. Two-tailed test; α = .01, n₁ = 15; n₂ = 17

5. Two-tailed test; α = .05, n₁ = 45; n₂ = 45

Table B CRITICAL VALUES OF t -fant tont tert Two-tailed or Nondirectional Test One-tailed or Directional Test LEVEL OF SIGNIFICANCE LEVEL OF SIGNIFICANCE p> 05 p