Based on the Following Results,which Would Be the Correct Use

question 31

Multiple Choice

Based on the following results,which would be the correct use of the formula,t = (M₁ - M₂) / S_difference?
Sample 1: Mean = 60; Variance of the distribution of means = 2
Sample 2: Mean = 50; Variance of the distribution of means = 7

• A)t = (7 - 2)/ √(50+60)
• B)t = (60 - 50)/ √(2²+7²)/2
• C)t = (60 - 50)/ √(2+7)
• D)t = (60 - 50)/ (2+7)

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