General Motors wants to know if a newly designed car has a different appeal to people under 30 versus people over 50 (so they better know who to market the car towards). If there is at least a 10% difference in either proportion then GM will significantly design its marketing campaign towards that group (otherwise, they will target more general audience). In another sample of 500 over 50, 375 expressed a favorable opinion of the car. In another sample of 450 under 30-year-olds, 270 expressed a more favorable opinion of a new design (compared with the old design). a) at the 5% level of significance does it appear there is at least a 10% difference?b) where is the P value? 11) General Motors wants to know if a newly designed car has a different appeal topeople under 30 versus people over 50 (so they better know who to market the cartowards). If there is at least a 10% difference in either proportion then GM willspecifically design its marketing campaign towards that group (otherwise, they willtarget a more general audience). In another sample of 500 over-50, 375 expressed afavorable opinion of the car. In another sample of 450 under-30 year olds, 270expressed a more favorable opinion of the new design (compared with the olddesign).a) At the 5% level of significance does it appear there is at least a 10% difference?b) What is the p-value?

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Answered: General Motors wants to know if a newly…

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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General Motors wants to know if a newly designed car has a different appeal to people under 30 versus people over 50 (so they better know who to market the car towards). If there is at least a 10% difference in either proportion then GM will significantly design its marketing campaign towards that group (otherwise, they will target more general audience). In another sample of 500 over 50, 375 expressed a favorable opinion of the car. In another sample of 450 under 30-year-olds, 270 expressed a more favorable opinion of a new design (compared with the old design). a) at the 5% level of significance does it appear there is at least a 10% difference? b) where is the P value?