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Find the degrees of freedom, df to test the hypothesis that μ1 > μ2. Two samples...

Find the degrees of freedom, df to test the hypothesis that μ1 > μ2. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below.
n1 = 40          n2 = 40
x1= 63.0 x2= 61.5
s1 = 15.8          s2 = 29.7

Round your answer DOWN to the nearest integer.

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Answer #1

we calculate the degrees of freedom as given below.

Therefore the degrees of freedom = 59 (Rounding down to the nearest integer)

_________________________

The Test Statistic

t = 0.28 (if required to 2 decimal places)

The p Value:    The p value (Right tail) for t = 0.28, df = 59, is; p value = 0.3895

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