11th Edition

ISBN: 8220101336323

Author: MULLINS

Publisher: PEARSON

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In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Textbook Question

Chapter 10.1, Problem 28E

Personal Bankruptcies The stem-and-leaf plot below gives the number of personal bankruptcies per 100,000 residents for the 50 U.S. states and the District of Columbia. (Data from: www.worldatlas.com.)

Stem	Leaves
0	59
1	01234
1	5555666678888
2	2
2	55567899
3	00112444
3	5666779
4	0
4	567
5	12
5
6	1
Units: 6 \| 1 = 610

Describe the shape of the distribution.

How many states have 400 or more bankruptcies per 100,000 residents?

How many states have 150 or less bankruptcies per 100,000 residents?

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Chapter 10.1, Problem 27E

Chapter 10.1, Problem 29E

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Chapter 10 Solutions

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Solution Summary: The author analyzes the shape of the grade distribution for the stem and leaf plot for personal bankruptcies per 100,000 residents.

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