One sample is selected to represent scores in treatment 1 and a second sample is used to represent scores in treatment 2.Which set of sample statistics would present the clearest picture of a real difference between the two treatments? A)M₁ = 36,M₂ = 40,and both variances = 43 B)M₁ = 36,M₂ = 40,and both variances = 6 C)M₁ = 38,M₂ = 40,and both variances = 43 D)M₁ = 38,M₂ = 40,and both variances = 6

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A smaller variance indicates less variability within each treatment group, making it easier to detect a real difference between the means of the two treatments.

One Sample Is Selected to Represent Scores in Treatment 1