Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
6th Edition
ISBN: 9781337115186
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Estimation
A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.
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Chapter 12.3, Problem 23E

Social networking is becoming more and more popular around the world. Pew Research Center used a survey of adults in several countries to determine the percentage of adults who use social networking sites (USA Today, February 8, 2012). Assume that the results for surveys in Great Britain, Israel, Russia, and United States are as follows.

Chapter 12.3, Problem 23E, Social networking is becoming more and more popular around the world. Pew Research Center used a

  1. a. Conduct a hypothesis test to determine whether the proportion of adults using social networking sites is equal for all four countries. What is the p-value? Using a .05 level of significance, what is your conclusion?
  2. b. What are the sample proportions for each of the four countries? Which country has the largest proportion of adults using social networking sites?
  3. c. Using a .05 level of significance, conduct multiple pairwise comparison tests among the four countries. What is your conclusion?
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Chapter 12 Solutions

Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)

Ch. 12.1 - Test the following hypotheses by using the χ2...Ch. 12.1 - Suppose we have a multinomial population with four...Ch. 12.1 - Television Audiences Across Networks. During the...Ch. 12.1 - M&M Candy Colors. Mars, Inc. manufactures M&M’s,...Ch. 12.1 - America’s Favorite Sports. The Harris Poll tracks...Ch. 12.1 - Traffic Accidents by Day of Week. The National...Ch. 12.2 - The following table contains observed frequencies...Ch. 12.2 - Prob. 8ECh. 12.2 - Airline Ticket Purchases for Domestic and...Ch. 12.2 - Hiring and Firing Plans at Private and Public...
Ch. 12.2 - Health insurance benefits vary by the size of the...Ch. 12.2 - Vehicle Quality Ratings. A J. D. Power and...Ch. 12.2 - Company Reputation and Management Quality Survey....Ch. 12.2 - Prob. 14ECh. 12.2 - The Carnegie Classification of Institutes of...Ch. 12.2 - Prob. 16ECh. 12.3 - Use the sample data below to test the...Ch. 12.3 - 2. reconsider the observed frequencies in exercise...Ch. 12.3 - Late Flight Comparison Across Airlines. The sample...Ch. 12.3 - Electronic Component Supplier Quality Comparison....Ch. 12.3 - Kate Sanders, a researcher in the department of...Ch. 12.3 - Error Rates in Tax Preparation. A tax preparation...Ch. 12.3 - Social networking is becoming more and more...Ch. 12.3 - Supplier Quality: Three Inspection Outcomes. The...Ch. 12 - In 2011, the industries with the most complaints...Ch. 12 - Bistro 65 is a chain of Italian restaurants with...Ch. 12 - Based on sales over a six-month period, the five...Ch. 12 - Pace-of-Life Preference By Gender. A Pew Research...Ch. 12 - Church Attendance by Age Group. The Barna Group...Ch. 12 - Ambulance Calls by Day of Week. An ambulance...Ch. 12 - Prob. 31SECh. 12 - Phoenix Marketing International identified...Ch. 12 - The five most popular art museums in the world are...Ch. 12 - In a study conducted by Zogby International for...Ch. 12 - Six months ago, Fuentes Salty Snacks, Inc., added...Ch. 12 - Fresno Board Games manufactures and sells several...
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