Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter 26, Problem 7E
To determine

To test an appropriate hypothesis.

Expert Solution & Answer
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Answer to Problem 7E

There is sufficient evidence to reject the claim that police officers reflects the ethnic of the city’s youth.

Explanation of Solution

The null and alternative hypotheses:

  H0:p1=29.2%,p2=28.2%,p3=31.5%,p4=9.1%,p5=2%,Ha:At least one of the pis different

Observed and expected can be found as,

    CompositionsExpectedObserved
    White0.292*261810.648*26181
    Black0.282*261810.145*26181
    Latino0.315*261810.191*26181
    Asian0.091*261810.14*26181
    Other0.02*261810

Therefore, using excel,

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 26, Problem 7E

  χ2 = 16513.68 and P-value = 0

Decision: The p-value< 0.05, reject H0.

Conclusion: There issufficient evidence to reject the claim that police officers reflects the ethnic of the city’s youth.

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