With the data above, calculate the difference between the means distribution parameter.
Jennifer -
Difference in means would use a t-statistic:
SE = Sqrt[ (s₁² / n₁) + (s₂² / n₂) ] = 2
t = (M₁ - M₂) / SE = (100-105) / 2 = -5 / 2 = -2.5
Hope that helped
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Jennifer -
Difference in means would use a t-statistic:
SE = Sqrt[ (s₁² / n₁) + (s₂² / n₂) ] = 2
t = (M₁ - M₂) / SE = (100-105) / 2 = -5 / 2 = -2.5
Hope that helped