Introduction to Statistics and Data Analysis
5th Edition
ISBN: 9781305445963
Author: PECK
Publisher: Cengage
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Chapter 11.2, Problem 32E
The paper “Quantitative Assessment of Glenohumeral Translation in Baseball Players” (American Journal of Sports Medicine [2004]: 1711–1715) considered various aspects of shoulder motion for a sample of pitchers and another sample of position players. The authors kindly supplied the data shown below on anteroposterior translation (mm), a measure of the extent of anterior and posterior motion, both for the dominant arm and the nondominant arm.
- a. Estimate the true average difference in translation between dominant and nondominant arms for pitchers using a 95% confidence interval.
- b. Estimate the true average difference in translation between dominant and nondominant arms for position players using a 95% confidence interval.
- c. The authors asserted that pitchers have greater difference in
mean anteroposterior translation of their shoulders than do position players. Do you agree? Explain.
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A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm²) from human optic nerve heads:
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(mm2) from human optic nerve heads:
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Chapter 11 Solutions
Introduction to Statistics and Data Analysis
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