(a) n = 20 for a one-independent sample t-test (b) df1 = 12, n2 = 19 for a two-independent sample t-test (c) critical value = 63.657 for a two-tailed test, α = 0.01 (d) critical value = 1.645 for a one-tailed test, α = 0.05
Added by Brenda V.
Step 1
In this case, n = 20. So, the degrees of freedom for (a) are: df = 20 - 1 = 19 Show more…
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