Suppose we are testing the difference between the two population means based on independent,random samples from two normally distributed populations with unknown but equal variances.If n₁ = 10 and n₂ = 10,the degrees of freedom for the t statistic is ____. A)19 B)18 C)9 D)8 E)20

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Quizplus · Accepted Answer

When the variances are assumed to be equal, the degrees of freedom for the t statistic is calculated as n1 + n2 - 2, which is 10 + 10 - 2 = 18.

Suppose We Are Testing the Difference Between the Two Population