A marketing research firm wishes to study the relationship between wine consumption and whether a person likes to watch professional tennis on television. One hundred randomly selected people are asked whether they drink wine and whether they watch tennis. The following results are obtained: Watch Do Not Tennis Watch Tennis Totals Drink Wine Do Not Drink Wine Totals 15 5 20 28 43 52 57 80 100 (a) For each row and column total, calculate the corresponding row or column percentage. Row 1 Row 2 65 × % 91 % Column 1 Column 2 25 % 65 % (b) For each cell, calculate the corresponding cell, row, and column percentages. (Round your answers to the nearest whole number.) Watch Tennis Do Not Watch Tennis Drink Wine Cell = 15 % Cell = 28 % Row = 35 % Row= 65 % Column 75 % Column= 25 % = Do Not Drink Wine Cell = 5 % Cell = 52 % Row = 9 % Row = 91 % Column 25 % Column = 65 % (c) Test the hypothesis that whether people drink wine is independent of whether people watch tennis. Set a = .05. (Round your answer to 3 decimal places.) x^2= 0.350 × Do not reject × HO. Conclude that whether a person drinks wine and whether a person watches tennis are not independent events.
A marketing research firm wishes to study the relationship between wine consumption and whether a person likes to watch professional tennis on television. One hundred randomly selected people are asked whether they drink wine and whether they watch tennis. The following results are obtained: Watch Do Not Tennis Watch Tennis Totals Drink Wine Do Not Drink Wine Totals 15 5 20 28 43 52 57 80 100 (a) For each row and column total, calculate the corresponding row or column percentage. Row 1 Row 2 65 × % 91 % Column 1 Column 2 25 % 65 % (b) For each cell, calculate the corresponding cell, row, and column percentages. (Round your answers to the nearest whole number.) Watch Tennis Do Not Watch Tennis Drink Wine Cell = 15 % Cell = 28 % Row = 35 % Row= 65 % Column 75 % Column= 25 % = Do Not Drink Wine Cell = 5 % Cell = 52 % Row = 9 % Row = 91 % Column 25 % Column = 65 % (c) Test the hypothesis that whether people drink wine is independent of whether people watch tennis. Set a = .05. (Round your answer to 3 decimal places.) x^2= 0.350 × Do not reject × HO. Conclude that whether a person drinks wine and whether a person watches tennis are not independent events.
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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