Fundamentals of Statistics (5th Edition)
Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter B.3, Problem 15AYU

An Inconsistent Player Sports announcers often say, “I wonder which player will show up to play today.” This is the announcer’s way of saying that the player’s performance varies dramatically from game to game. Suppose that the standard deviation of the number of points scored by shooting guards in the NBA is 8.3. A random sample of 25 games played by Derrick Rose results in a sample standard deviation of 6.7 points. Assume that a normal probability plot indicates that the points scored are approximately normally distributed. Is Derrick Rose more consistent than other shooting guards in the NBA at the α = 0.10 level of significance?

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