Question: A teacher wishes to compare two different groups of students with respect to their mean time to complete a standardized test. The time required is determined for each group. The data summary is given below. Test the claim at a = 0.10, that there is no difference in variance. Give the critical region, test statistic value, and conclusion for the F test.
n₁ = 60 s₁ = 11
n₂ = 120 s₂ = 17
a = 0.10
State the null and alternate hypotheses
Determine which test statistic applies, and calculate it
Determine the critical region
State your decision: Should the null hypothesis be rejected?