Question

Ages for the 2009 Boston Red Sox pitchers are shown below.
(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.


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  • CreatedAugust 19, 2015
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