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J.D. Power and Associates vehicle quality survey asked new owners a variety of questions about their recently purcha: he vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner chool, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners w Education Quality Rating Some HS HS Grad Some College Average 35 30 25 Outstanding 50 45 50 Exceptional 15 25 25 . Use a 0.05 level of significance and a test of independence to determine if a new owner's vehicle quality rating is inde Compute the value of the x test statistic (to 2 decimals).

J.D. Power and Associates vehicle quality survey asked new owners a variety of questions about their recently purcha: he vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner chool, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners w Education Quality Rating Some HS HS Grad Some College Average 35 30 25 Outstanding 50 45 50 Exceptional 15 25 25 . Use a 0.05 level of significance and a test of independence to determine if a new owner's vehicle quality rating is inde Compute the value of the x test statistic (to 2 decimals).

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
Problem 1P
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A J.D. Power and Associates vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner's rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner's education level with the categorical responses some high school, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners who had recently purchased an automobile. Education Quality Rating Some HS HS Grad Some College College Grad Average 35 30 25 60 Outstanding 50 45 50 90 Exceptional 15 25 25 50 a. Use a 0.05 level of significance and a test of independence to determine if a new owner's vehicle quality rating is independent of the owner's education. Compute the value of the x test statistic (to 2 decimals). Use Table 3 of Appendix B to find the p-value. The p-value is - Select your answer - What is your conclusion? - Select your answer- v that the quality rating is not independent of the education of the owner. b. Use the overall percentage of average, outstanding, and exceptional ratings to comment on how new owners rate the quality of their recently purchased automobiles. Average % Outstanding % Exceptional % New owners Select your answer v to be satisfied with the recent purchase of their automobile. % of owners rated their automobile as Outstanding or Exceptional. - Select your answer - do not appear appear
Transcribed Image Text:A J.D. Power and Associates vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner's rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner's education level with the categorical responses some high school, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners who had recently purchased an automobile. Education Quality Rating Some HS HS Grad Some College College Grad Average 35 30 25 60 Outstanding 50 45 50 90 Exceptional 15 25 25 50 a. Use a 0.05 level of significance and a test of independence to determine if a new owner's vehicle quality rating is independent of the owner's education. Compute the value of the x test statistic (to 2 decimals). Use Table 3 of Appendix B to find the p-value. The p-value is - Select your answer - What is your conclusion? - Select your answer- v that the quality rating is not independent of the education of the owner. b. Use the overall percentage of average, outstanding, and exceptional ratings to comment on how new owners rate the quality of their recently purchased automobiles. Average % Outstanding % Exceptional % New owners Select your answer v to be satisfied with the recent purchase of their automobile. % of owners rated their automobile as Outstanding or Exceptional. - Select your answer - do not appear appear
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