1) What is the number of degrees of freedom in each of the following?

A. a sample of 10 observations

B. a sample of 100 observations

C. a sample of 250 observations

2) What is the two-tail probability in each of the following?

a. n= 10, S.D. from the mean = 2

b. n= 10, S.D. from the mean = 3

c. n = 100, S.D. from the mean = 2

3) What is the one-tail probability in each of the following?

A. n = 10, S.D. from the mean = 2

B. n = 10, S.D. from the mean = 3

C. n = 100, S.D. from the mean = 2

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