SOLUTION: A paired difference test is being conducted involving 19 pairs of observations. What is the number of degrees of freedom for the test statistic? a. 18 b. 19 c.

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Question 138545: A paired difference test is being conducted involving 19 pairs of observations. What is the number of degrees of freedom for the test statistic?
a. 18
b. 19
c. 37
d. 38
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
You should use a t-test with 18 degrees of freedom.
Cheers,
Stan H.