Answered: A large pizza chain has conducted a…

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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Question

A large pizza chain has conducted a study to determine if the types of preferred pizza are independent of the region of the country where it is sold. One hundred random samples are selected in each region of the country with the following results.

a.Set up hypotheses to test if these preferred types of pizza are independent of the region of the country in which they are sold.

b.Perform the appropriate statistical test to obtain your results.

c.Calculate the p value and fully explain your results.

Areas	Thin not Spicy	Thin spicy	Thick Crust not Spicy	Thick Crust Spicy	Total Samples
Northeast	30	10	40	20	100
Northwest	25	20	45	10	100
Southwest	25	25	25	25	100
Southwest	15	30	10	45	100
Totals	95	85	120	100	400

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