Chat with AIExam 11: Two-Sample Tests of Hypothesis
Exam 1: What Is Statistics59 Questions
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If we are testing for the difference between two population means and assume that the two populations have equal and unknown standard deviations,the degrees of freedom are computed as (n1)(n2)− 1.
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(42) When the standard deviations are equal but unknown,a test for the differences between two population means has n − 1 degrees of freedom.
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