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

question 63

Multiple Choice

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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