In testing the difference between the means of two normally distributed populations,if μ₁ = μ₂ = 50,n₁ = 9,n₂ = 13,the degrees of freedom for the t statistic equals ___________. A)22 B)21 C)19 D)20

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The Answer of In testing the difference between the means of two normally distributed populations,if μ₁ = μ₂ = 50,n₁ = 9,n₂ = 13,the degrees of freedom for the t statistic equals ___________. A)22 B)21 C)19 D)20

In Testing the Difference Between the Means of Two Normally