121- I need not only the answers, but also to understand how to go about finding

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121- I need not only the answers, but also to understand how to go about finding the answers (formulas, etc). Thank you!

For each situation below, provide the following: 2. sr, sample t ratio, critical t value, and the
statistical decision regarding H0:=0. (Assume that the obtained correlation is in the direction of H1.)
(a) r = 38, n=30,= 05, two-tailed test
(b) r = 60, n= 10,= 05, two-tailed test
(c) r = 17, n=62,= 01, two-tailed test
(d) r = 69, n= 122,= 05, one-tailed test
(e) r = 43, n=140,= 01, one-tailed test

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121- I need not only the answers, but also to understand how to go about finding

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