Ages for the 2009 Boston Red Sox pitchers are shown below. (a) Assuming this is a random
Question:
(a) Assuming this is a random sample of major league pitchers, at the 5 percent level of significance does this sample show that the true mean age of all American League pitchers is over 30 years? State your hypotheses and decision rule and show all work.
(b) If there is a difference, is it important?
(c) Find the p-value and interpret it.
Transcribed Image Text:
Ages of Boston Red Sox Pitchers, May 2009 Bard Beckett 29 Delcarmen 27 Okajima 34 Papelbon 29 Penny 31 Ramirez 28 Saito Wakefield 43 24 Lester Masterson 24 Matsuzaka 29 25 39
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a so do not reject the null hypothesis and we cannot conclude that the true mean age is greater th...View the full answer
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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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