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For a small sample difference of means test where n1 9 and

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Reference no: EM13634906

For a small sample difference of means test where n1 = 9 and n2 = 11, and we can assume the population variances are equal, the degrees of freedom for the test statistic is:

A. 20

B. 19

C. 18

D. 10

Reference no: EM13634906

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