Concept explainers
a)
To make a sensible change and find the expected count which will be acceptable.
a)
Answer to Problem 36E
The condition for chi-square test is satisfied.
Explanation of Solution
Given:
Formula:
The expected counts of Violent and Other category is too small. Therefore, combine that both cells and will try to find expected counts again.
Using excel,
The expected counts are greater than 5. Therefore, condition for chi-square test is satisfied. Hence, it is appropriate to use Chi-square test of Homogeneity.
b)
To perform chi-square test.
b)
Answer to Problem 36E
There is not sufficient evidence to support the claim that the types of crime are different during the moon.
Explanation of Solution
Given:
The null and alternative hypotheses:
Using excel,
Decision: The p-value > 0.05, fail to reject H0.
Conclusion: There is not sufficient evidence to support the claim that the types of crime are different during the moon.
Chapter 26 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Additional Math Textbook Solutions
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