12. In a recent survey, 200 randomly-selected high school students were asked whether they would prefer to win an Olympic gold medal, an Oscar, or a Nobel Prize. The results of their response and the sex of respondent are summarized in the table below. Olympic Medal Academy Award 10 Nobel Prize Female 41 43 94 Male 61 5 40 106 102 15 83 200 Draw a side-by-side bar chart to display the distribution of gender for each award the students would prefer to win for the 200 students.

12. In a recent survey, 200 randomly-selected high school students were asked whether they would prefer to win an Olympic gold medal, an Oscar, or a Nobel Prize. The results of their response and the sex of respondent are summarized in the table below. Olympic Medal Academy Award 10 Nobel Prize Female 41 43 94 Male 61 5 40 106 102 15 83 200 Draw a side-by-side bar chart to display the distribution of gender for each award the students would prefer to win for the 200 students.

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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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A television station wishes to study the relationship between viewership of its 11 p.m. news program and viewer age (18 years or less, 19 to 35, 36 to 54, 55 or older). A sample of 250 television viewers in each age group is randomly selected, and the number who watch the station’s 11 p.m. news is found for each sample. The results are given in the table below. Age Group Watch11 p.m. News? 18 or less 19 to 35 36 to 54 55 or Older Total Yes 49 59 61 84 253 No 201 191 189 166 747 Total 250 250 250 250 1,000 (a) Let p1, p2, p3, and p4 be the proportions of all viewers in each age group who watch the station’s 11 p.m. news. If these proportions are equal, then whether a viewer watches the station’s 11 p.m. news is independent of the viewer’s age group. Therefore, we can test the null hypothesis H0 that p1, p2, p3, and p4 are equal by carrying out a chi-square test for independence. Perform this test by setting α = .05. (Round your answer to 3 decimal places.)…
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