In a left-tailed test comparing two means with variances unknown but assumed to be equal,the sample sizes were n1 = 8 and n2 = 12.At α = .05,the critical value would be
A)−1.960
B)−2.101
C)−1.734
D)−1.645

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The Answer of In a left-tailed test comparing two means with variances unknown but assumed to be equal,the sample sizes were n1 = 8 and n2 = 12.At α = .05,the critical value would be
A)−1.960
B)−2.101
C)−1.734
D)−1.645

In a Left-Tailed Test Comparing Two Means with Variances Unknown