Answered: 1. Consider the following information…

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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1. Consider the following information showing the preference among boys and girls for orange juice and apple juice.
Boys and Apple Juice 10
Boys and Orange Juice 20
Girls and Apple Juice 22
Girls and Orange Juice 18
If we like to check if juice preference and gender are related to each other, what would be the expected frequency for the cell that corresponds to girls and apple juice?

A. 18.3

B. 13.7

C. 22

D. None of these

2. If the computed Chi Square statistic is 3.24, obtain the p-value.

A. 5.991

B. 3.841

C. 0.198

D. 0.072

3. What is your decision at 0.05 significance level using p-value approach?

A. Since p-value is less than 0.05, we reject the null hypothesis.

B. Since p-value is less than 0.05, we fail to reject the null hypothesis.

C. Since p-value is more than 0.05, we reject the null hypothesis.

D. Since p-value is more than 0.05, we fail to reject the null hypothesis.

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