In a right-tailed test comparing two means with known variances,the sample sizes were n₁ = 8 and n₂ = 12.At $\alpha$ = .05,the critical value would be: A) 1.960 B) 1.645 C) 1.734 D) 1.282

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For a right-tailed test with alpha level 0.05, the critical value would be 1.645. This is based on looking at the F-distribution table with degrees of freedom df1 = 7 and df2 = 11.

In a Right-Tailed Test Comparing Two Means with Known Variances,the α\alphaα

In a Right-Tailed Test Comparing Two Means with Known Variances,the $\alpha$