Statistics for Business & Economics, Revised (MindTap Course List)

12th Edition

ISBN: 9781285846323

Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

Publisher: South-Western College Pub

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2-Proportion Test

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 2.4, Problem 41E

People often wait until middle age to worry about having a healthy heart. However, recent studies have shown that earlier monitoring of risk factors such as blood pressure can be very beneficial (The Wall Street Journal, January 10, 2012). Having higher than normal blood pressure, a condition known as hypertension, is a major risk factor for heart disease. Suppose a large sample of individuals of various ages and gender was selected and that each individual’s blood pressure was measured to determine if they have hypertension. For the sample data, the following table shows the percentage of individuals with hypertension.

Chapter 2.4, Problem 41E, People often wait until middle age to worry about having a healthy heart. However, recent studies

a. Develop a side-by-side bar chart with age on the horizontal axis, the percentage of individuals with hypertension on the vertical axis, and side-by-side bars based on gender.
b. What does the display you developed in part (a), indicate about hypertension and age?
c. Comment on differences by gender.

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Chapter 2.4, Problem 40E

Chapter 2.4, Problem 42E

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Chapter 2 Solutions

Statistics for Business & Economics, Revised (MindTap Course List)

Ch. 2.1 - Methods 1. The response to a question has three...Ch. 2.1 - A partial relative frequency distribution is...Ch. 2.1 - A questionnaire provides 58 Yes, 42 No, and 20...Ch. 2.1 - for the 20102011 viewing season, the top five...Ch. 2.1 - In alphabetical order, the six most common last...Ch. 2.1 - Nielsen Media Research provided the list of the 25...Ch. 2.1 - The Canmark Research Center Airport Customer...Ch. 2.1 - Data for a sample of 55 members of the Baseball...Ch. 2.1 - The Pew Research Centers Social Demographic...Ch. 2.1 - The Financial Times/Harris Poll is a monthly...

Ch. 2.2 - Consider the following data. a. Develop a...Ch. 2.2 - Consider the following frequency distribution....Ch. 2.2 - Construct a histogram for the data in exercise 12.Ch. 2.2 - Consider the following data. a. Construct a dot...Ch. 2.2 - Construct a stem-and-leaf display for the...Ch. 2.2 - Construct a stem-and-leaf display for the...Ch. 2.2 - Applications A doctors office staff studied the...Ch. 2.2 - A shortage of candidates has required school...Ch. 2.2 - The London School of Economics and the Harvard...Ch. 2.2 - Fortune provides a list of Americas largest...Ch. 2.2 - entrepreneur magazine ranks franchises using...Ch. 2.2 - The Nielsen Home Technology Report provided...Ch. 2.2 - Prob. 24E Ch. 2.2 - A psychologist developed a new test of adult...Ch. 2.2 - The 2011 Cincinnati Flying Pig Half-Marathon (13.1...Ch. 2.3 - The following data are for 30 observations...Ch. 2.3 - The following observations are for two...Ch. 2.3 - The following crosstabulation shows household...Ch. 2.3 - Refer again to the crosstabulation of household...Ch. 2.3 - Recently, management at Oak Tree Golf Course...Ch. 2.3 - Table 2.12 shows a data set containing information...Ch. 2.3 - Refer to the data in Table 2.12. a. Prepare a...Ch. 2.3 - Refer to the data in Table 2.12. a. Prepare a...Ch. 2.3 - The U.S. Department of Energys Fuel Economy Guide...Ch. 2.4 - The following 20 observations are for two...Ch. 2.4 - Consider the following data on two categorical...Ch. 2.4 - The following crosstabulation summarizes the data...Ch. 2.4 - A study on driving speed (miles per hour) and fuel...Ch. 2.4 - The Current Results website lists the average...Ch. 2.4 - People often wait until middle age to worry about...Ch. 2.4 - Smartphones are advanced mobile phones with...Ch. 2.4 - The Northwest regional manager of an outdoor...Ch. 2 - Approximately 1.5 million high school students...Ch. 2 - The Pittsburgh Steelers defeated the Arizona...Ch. 2 - Data showing the population by state in millions...Ch. 2 - A startup companys ability to gain funding is a...Ch. 2 - Consumer complaints are frequently reported to the...Ch. 2 - Dividend yield is the annual dividend paid by a...Ch. 2 - One of the questions in a Financial Times/Harris...Ch. 2 - western University has only one womens softball...Ch. 2 - A survey of commercial buildings served by the...Ch. 2 - Table 2.18 shows a portion of the data for a...Ch. 2 - Refer to the data set in Table 2.18. a. Construct...Ch. 2 - Refer to the data set in Table 2.18. a. Construct...Ch. 2 - Refer to the data set in Table 2.18. a. Prepare a...Ch. 2 - Google has changed its strategy with regard to how...Ch. 2 - A zoo has categorized its visitors into three...Ch. 2 - Pelican Stores Pelican Stores, a division of...Ch. 2 - Motion Picture Industry The motion picture...

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Solution Summary: The author explains how to construct a side-by-side bar chart using MINITAB.

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