A t distribution assigns more probability to large values than the standard normal.
(a) Find t.05 for d.f. = 12 and then evaluate P[Z > t.05]. Verify that P[T > t.05] is greater than P[Z > t.05].
(b) Examine the relation for d.f. of 5 and 20, and comment.
This question was answered on: Jul 11, 2017
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