Using Table H, find the critical value for each.

a. Sample 1: s2 / 1 = 128, n₁ = 23

 Sample 2: s2 / 2 =162, n₂ = 16

 Two-tailed, α = 0.01

b. Sample 1: s2 / 1 = 37, n₁= 14

 Sample 2: s2 / 2 = 89, n₂ = 25

 Right-tailed, α = 0.01

c. Sample 1: s2 / 1= 232, n₁= 30

 Sample 2: s2 / 2 = 387, n₂= 46

 Two-tailed, α = 0.05

d. Sample 1: s2 / 1= 164, n₁= 21

 Sample 2: s2 / 2 = 53, n₂ = 17

 Two-tailed, α = 0.10

e. Sample 1: s2 / 1 = 92.8, n₁ = 11

 Sample 2: s2 / 1 = 43.6, n₂ = 11

 Right-tailed, α = 0.05