PRACTICE OF STATISTICS F/AP EXAM
PRACTICE OF STATISTICS F/AP EXAM
6th Edition
ISBN: 9781319113339
Author: Starnes
Publisher: MAC HIGHER
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Chapter 11.1, Problem 21E
To determine

To find a decision about hypothesis testing.

Expert Solution & Answer
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Answer to Problem 21E

Because the 0.0129 is less than a = 0.05 reject H0. There is not convincing evidence that the food choices are equally popular.

Explanation of Solution

Given:

    Type of food Ramen Tacos Pizza Hamburgers
    Count 18 22 39 21

Null and alternative hypotheses:

  H0:pR=pT=pP=pH=0.25

  Ha: At least one of the pis is incorrect.

The p-value = 0.0129

Level of significance = a = 0.05

The decision should be regarding a claim.

Decision: Because the 0.0129 is less than a = 0.05 reject H0. There is not convincing evidence that the food choices are equally popular. Hence, option b is correct

Chapter 11 Solutions

PRACTICE OF STATISTICS F/AP EXAM

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