SOLUTION: a sample of 20 is selected from the population. What is the number of degrees of freedom used to determine the appropriate critical t-value? A) 20 B) 19 C) 21 D) 25

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Question 144752: a sample of 20 is selected from the population. What is the number of degrees of freedom used to determine the appropriate critical t-value?
A) 20
B) 19
C) 21
D) 25
E) None of the above

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
n-1 = 19
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Cheers,
Stan H.