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Executives at The Thinking Channel have decided to test whether the educational backgrounds of the channel's viewers are different from the educational backgrounds of American adults (ages 25 and over) as a whole. The executives have the following information on the American adult population as a whole, obtained from a recent U.S. Current Population Survey. Highest degree earned Less than high school High school College Higher than college Percent of population (fo-E)² (ObservettequencyExpectefrequency JE Expectefrequency Round your The executives also obtained data (from telephone surveys) on highest degrees earned for a random sample of 200 American adults who are Thinking Channel viewers. These data are summarized by the first row of numbers in the table below. These numbers are the frequencies for the degree categories that were observed in the sample of 200. The second row of numbers gives the expected frequencies under the assumption that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. The bottom row of numbers gives the following value for each of the degree categories. Send data to Excel Observed frequency fo Part 1 Fill in the missing values in the table. Round your responses for the expected frequencies to two or more decimal places. (fo-ƒE)² responses to three or more decimal places. fe Expected frequency SE (fo-ƒE)² JE 12% Less than high school 26 0 High school 25% 37 0 College 128 55% 110.00 2.945 Higher than college 8% 16.00 3.063 Total 200 X

Executives at The Thinking Channel have decided to test whether the educational backgrounds of the channel's viewers are different from the educational backgrounds of American adults (ages 25 and over) as a whole. The executives have the following information on the American adult population as a whole, obtained from a recent U.S. Current Population Survey. Highest degree earned Less than high school High school College Higher than college Percent of population (fo-E)² (ObservettequencyExpectefrequency JE Expectefrequency Round your The executives also obtained data (from telephone surveys) on highest degrees earned for a random sample of 200 American adults who are Thinking Channel viewers. These data are summarized by the first row of numbers in the table below. These numbers are the frequencies for the degree categories that were observed in the sample of 200. The second row of numbers gives the expected frequencies under the assumption that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. The bottom row of numbers gives the following value for each of the degree categories. Send data to Excel Observed frequency fo Part 1 Fill in the missing values in the table. Round your responses for the expected frequencies to two or more decimal places. (fo-ƒE)² responses to three or more decimal places. fe Expected frequency SE (fo-ƒE)² JE 12% Less than high school 26 0 High school 25% 37 0 College 128 55% 110.00 2.945 Higher than college 8% 16.00 3.063 Total 200 X

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Executives at The Thinking Channel have decided to test whether the educational backgrounds of the channel's viewers are different from the educational backgrounds of American adults (ages 25 and over) as a whole. The executives have the following information on the American adult population as a whole, obtained from a recent U.S. Current Population Survey. Highest degree earned Less than high school Percent of population (fo-fE)² JE Part 1 Send data to Excel Observed frequency fo The executives also obtained data (from telephone surveys) on highest degrees earned for a random sample of 200 American adults who are Thinking Channel viewers. These data are summarized by the first row of numbers in the table below. These numbers are the frequencies for the degree categories that were observed in the sample of 200. The second row of numbers gives the expected frequencies under the assumption that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. The bottom row of numbers gives the following value for each of the degree categories. Expected frequency JE (ObservettequencyExpectefequency Expectefrequency (Jo-¹e)² SE 12% Less than high school Fill in the missing values in the table. Round your responses for the expected frequencies to two or more decimal places. (fo-fE)² Round your responses to three or more decimal places. JE 26 High school 37 High school 0 25% 0 College 128 College Higher than college 110.00 55% 2.945 Higher than college 9 8% 16.00 3.063 Total 200 X
Transcribed Image Text:Executives at The Thinking Channel have decided to test whether the educational backgrounds of the channel's viewers are different from the educational backgrounds of American adults (ages 25 and over) as a whole. The executives have the following information on the American adult population as a whole, obtained from a recent U.S. Current Population Survey. Highest degree earned Less than high school Percent of population (fo-fE)² JE Part 1 Send data to Excel Observed frequency fo The executives also obtained data (from telephone surveys) on highest degrees earned for a random sample of 200 American adults who are Thinking Channel viewers. These data are summarized by the first row of numbers in the table below. These numbers are the frequencies for the degree categories that were observed in the sample of 200. The second row of numbers gives the expected frequencies under the assumption that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. The bottom row of numbers gives the following value for each of the degree categories. Expected frequency JE (ObservettequencyExpectefequency Expectefrequency (Jo-¹e)² SE 12% Less than high school Fill in the missing values in the table. Round your responses for the expected frequencies to two or more decimal places. (fo-fE)² Round your responses to three or more decimal places. JE 26 High school 37 High school 0 25% 0 College 128 College Higher than college 110.00 55% 2.945 Higher than college 9 8% 16.00 3.063 Total 200 X
Part 2 Answer the following to summarize the test of the hypothesis that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. Use the 0.10 level of significance for the test. (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) (b) Find the value of the test statistic. (Round your answer to two or more decimal places.) 0 (c) Find the critical value. (Round your answer to two or more decimal places.) 0 (d) Can we conclude that the distribution of highest degrees earned by Thinking Channel viewers is different from the distribution of highest degrees earned by American adults as a whole? Yes No X
Transcribed Image Text:Part 2 Answer the following to summarize the test of the hypothesis that the distribution of highest degrees earned by Thinking Channel viewers is the same as the distribution of highest degrees earned by American adults as a whole. Use the 0.10 level of significance for the test. (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) (b) Find the value of the test statistic. (Round your answer to two or more decimal places.) 0 (c) Find the critical value. (Round your answer to two or more decimal places.) 0 (d) Can we conclude that the distribution of highest degrees earned by Thinking Channel viewers is different from the distribution of highest degrees earned by American adults as a whole? Yes No X
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