An Introduction to Statistical Methods and Data Analysis

7th Edition

ISBN: 9781305269477

Author: R. Lyman Ott, Micheal T. Longnecker

Publisher: Cengage Learning

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Textbook Question

Chapter 3.11, Problem 72SE

Refer to the data in Exercise 3.69.

a. Construct a quantile plot of the number of syphilis cases.
b. From the quantile plot, determine the 90th percentile for the number of syphilis cases.
c. Identify the states in which the number of syphilis cases is above the 90^th percentile.

3.69. Certain types of diseases tend to occur in clusters. In particular, persons affected with AIDS, syphilis, and tuberculosis may have some common characteristics and associations that increase their chances of contracting these diseases. The following table lists the number of reported cases by state in 2001.

Chapter 3.11, Problem 72SE,
Refer to the data in Exercise 3.69.
Construct a quantile plot of the number of syphilis cases.
From , example 1

Chapter 3.11, Problem 72SE,
Refer to the data in Exercise 3.69.
Construct a quantile plot of the number of syphilis cases.
From , example 2

a. Construct a scatterplot of the number of AIDS cases versus the number of syphilis cases.
b. Compute the correlation between the number of AIDS cases and the number of syphilis cases.
c. Does the value of the correlation coefficient reflect the degree of association shown in the scatterplot?
d. Why do you think there may be a correlation between these two diseases?

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Chapter 3.11, Problem 71SE

Chapter 3.11, Problem 73SE

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Chapter 3 Solutions

An Introduction to Statistical Methods and Data Analysis

Ch. 3.11 - The U.S. government spent more than $3.6 trillion...Ch. 3.11 - The type of vehicle the U.S public purchases...Ch. 3.11 - It has been reported that there has been a change...Ch. 3.11 - The regulations of the board of health in a...Ch. 3.11 - The National Highway Traffic Safety Administration...Ch. 3.11 - Prob. 6E Ch. 3.11 - The survival times (in months) for two treatments...Ch. 3.11 - Combine the data from the separate therapies in...Ch. 3.11 - Prob. 9E Ch. 3.11 - The following table presents homeownership rates,...

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