Case Problem: Young Professional Magazine Young Professional magazine was developed for a target audience of recent college graduates who are in their first 10 years of a business or other professional career. The magazine has been fairly successful and the publisher is interested in expanding the publication’s advertising base. As a recent hire into the marketing department at the magazine, you have been asked to help develop a survey asking readers demographic information and questions about their interests. Your survey results will be used to help the magazine choose articles of interest and provide advertisers with a profile of subscribers. The culmination of your work will be a presentation of your findings to management. Therefore, you not only have to present summary data, but must also be able to explain the results in a manner that is accurate and easy to understand. Based on the following results of your survey, how confident are you that a majority of the magazine’s subscribers have broadband access? a. A large degree of confidence: 50.1% (a majority) is at the lower end of the 95% confidence interval for the population proportion. b. A small degree of confidence; 50.1% (a majority) is at the upper end of the 95% confidence interval for the population proportion. c. Near certainty; 50.1% (a majority) is far below the 95% confidence interval for the population proportion. d. Almost zero confidence; 50.1% (a majority) is far above the 95% confidence interval for the population proportion

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following is not a graded test. It is just a homework practice problems.

Case Problem: Young Professional Magazine

Young Professional magazine was developed for a target audience of recent college graduates who are in their first 10 years of a business or other professional career. The magazine has been fairly successful and the publisher is interested in expanding the publication’s advertising base. As a recent hire into the marketing department at the magazine, you have been asked to help develop a survey asking readers demographic information and questions about their interests. Your survey results will be used to help the magazine choose articles of interest and provide advertisers with a profile of subscribers.

The culmination of your work will be a presentation of your findings to management. Therefore, you not only have to present summary data, but must also be able to explain the results in a manner that is accurate and easy to understand.

Based on the following results of your survey, how confident are you that a majority of the magazine’s subscribers have broadband access?

a. A large degree of confidence: 50.1% (a majority) is at the lower end of the 95% confidence interval for the population proportion.

b. A small degree of confidence; 50.1% (a majority) is at the upper end of the 95% confidence interval for the population proportion.

c. Near certainty; 50.1% (a majority) is far below the 95% confidence interval for the population proportion.

d. Almost zero confidence; 50.1% (a majority) is far above the 95% confidence interval for the population proportion.

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