An Introduction to Mathematical Statistics and Its Applications (6th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
6th Edition
ISBN: 9780134114217
Author: Richard J. Larsen, Morris L. Marx
Publisher: PEARSON
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Chapter 8.2, Problem 2Q

For Questions 8.2.1-8.2.12 use the flowchart in Figure 8.2.4 to identify the experimental designs represented. In each case, answer whichever of the questions on p. 427 are necessary to make the determination.

Mandatory helmet laws for motorcycle riders remain a controversial issue. Some states have a “limited” ordinance that applies only to younger riders; others have a “comprehensive” statute requiring all riders to wear helmets. Listed in the next column are the deaths per ten thousand registered motorcycles reported by states having each type of legislation ( 196 ) .

Limited Helmet Law Comprehensive Helmet Law
6.8 7.0 9.1 7.1 4.8 7.0
10.6 4.1 0.5 11.2 5.0 6.8
9.6 5.7 6.7 17.9 8.1 7.3
9.1 7.6 6.4 11.3 5.5 12.9
5.2 3.0 4.7 8.5 11.7 3.7
13.2 6.7 15.0 9.3 4.0 5.2
6.9 7.3 4.7 5.4 7.0 6.9
8.1 4.2 4.8 10.5 9.3 8.6
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