Given the Following Information About a Hypothesis Test of the Difference

question 160

Multiple Choice

Given the following information about a hypothesis test of the difference between two variances based on independent random samples,what is the critical value of the test statistic at a significance level of .05? Assume that the samples are obtained from normally distributed populations.
H_A: ?²_A > ?²_B, $\bar { X }$
₁ = 12, $\bar { X }$
₂ = 9,s₁ = 5,s₂ = 3,n₁ = 13,n₂ = 10.

• A)3.87
• B)3.44
• C)3.07
• D)2.8
• E)2.38

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