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Question text You are comparing how many hours that freshmen and seniors spend watching TV. Suppose...

Question text

You are comparing how many hours that freshmen and seniors spend watching TV. Suppose you pick a sample of 13 freshmen and 15 seniors and want to calculate a confidence interval on the difference between means. How many degrees of freedom does your t-value have?

Select one:

b. 26

c. 30

d. 32

math   Statistics-And-Probability   
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Answer #1

Solution:- (b) The degrees of freedom does your t-value have is 26.

D.F = n1 + n2 - 2

D.F = 13 + 15 - 2

D.F = 26

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