Answered: Undergraduate students at Miami…

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

12.EOC.56-E

Undergraduate students at Miami University in Oxford, Ohio, were surveyed in order to evaluate the effect of gender and price on purchasing a pizza from Pizza Hut. Students were told to suppose that they were planning to have a large two-topping pizza delivered to their residence that evening. The students had to decide between ordering from Pizza Hut at a reduced price of $8.49 (the regular price for a large two-topping pizza from Oxford Pizza Hut at the time was $11.49) and ordering a pizza from a different pizzeria. The results from this question are summarized in the accompanying contingency table. Complete parts (a) through (d).

GENDER Pizza Hut Other
Female 4 12
Male 8 16

Using a 0.05 level of significance, is there evidence of a difference between males and females in their pizzeria selection?

b. What is your answer to (a) if twelve of the male students selected Pizza Hut and twelve selected another pizzeria?

Second table

Price

PIZZERIA $8.49 $11.49 $14.49
Pizza Hut 12 6 3
Other 29 21 25

c. Using a 0.05 level of significance and using the data in the second contingency table, is there evidence of a difference in pizzeria selection based on price?
d. Determine the p-value in (c) and interpret its meaning.

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