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

question 57

Multiple Choice

In a left-ailed test comparing two means with variances unknown but assumed to be equal,the sample sizes were n₁ = 8 and n₂ = 12.At  = .05,the critical value would be:

• A) -1.960
• B) -2.101
• C) -1.734
• D) -1.645

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