Data obtained from the National Center for Health Statistics show that men between the ages of 20
Question:
Data obtained from the National Center for Health Statistics show that men between the ages of 20 and 29 have a mean height of 69.3 inches, with a standard deviation of 2.9 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 2.9 inches. The heights (in inches) of 20 randomly selected players are shown in the table.
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(a) Verify that the data are normally distributed by drawing a normal probability plot.
(b) Compute the sample standard deviation.
(c) Test the notion at the α = 0.01 level of significance.
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a The points roughly form a straight line so it is reasonable to as...View the full answer
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Related Book For 
Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
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