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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Question
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Chapter 26, Problem 18E

a)

To determine

To find the components of Chi-square test.

a)

Expert Solution
Check Mark

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 26, Problem 18E , additional homework tip  1

Calculation:

Using excel,

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 26, Problem 18E , additional homework tip  2

b)

To determine

To find the p-value.

b)

Expert Solution
Check Mark

Answer to Problem 18E

The p-value is 0.0000

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 26, Problem 18E , additional homework tip  3

  χ2 = 25.28

The degrees of freedom are 2

The p-value = 0.0000

Using excel formula,

=CHIDIST(25.28,2)

c)

To determine

To state the conclusion.

c)

Expert Solution
Check Mark

Answer to Problem 18E

There is sufficient evidence to reject the claim of independence.

Explanation of Solution

Given:

  χ2 = 25.28

P-value = 0.0000

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

Conclusion: There is sufficient evidence to reject the claim of independence.

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