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)

Question

Quizplus · Accepted Answer

The correct formula to use is t = (M₁ - M₂)/ S_difference, which requires the mean and variance of the distribution of means for each sample. Substituting the given values, we have t = (60-50) / √(2+7) = 3.16. Option A uses the wrong denominator, option B introduces unnecessary parameters and uses the sum of squares instead of the variances, and option D only calculates the difference in means.

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