The number of passes completed by Ben Roethlisberger, quarterback for the Pittsburgh Steelers, was recorded for each
Question:
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a. A stem and leaf plot of the n = 12 observations is shown below:
Stem-and-Leaf Display: Roethlisberger
Stem-and-leaf of Roethlisberger N = 12
Leaf Unit = 1.0
-2.png)
Based on this plot, is it reasonable to assume that the underlying population is approximately normal, as required for the one-sample t-test? Explain.
b. Calculate the mean and standard deviation for Ben Roethlisberger's per game pass completions.
c. Construct a 95% confidence interval to estimate the average pass completions per game for Ben Roethlisberger.
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a The stem and leaf plot has two peaks and a large gap between 23 and 30 For a small sample ...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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