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Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 30E

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O Suppose the following table gives the distribution of geometry grades in 2 high schools.
A B C D
High school 1 27 39 60
High school 2 28 51
F
Total
42 32
200
120
68
33
300
Total
55 90 180
110 65
500
Let H be the hypothesis that the grade distributions are homogeneous in the 2 high schools. (a) Find
the value. (b} Find the degrees of freedom (df). (c) Test Ho at the following significance levels: (i)
a = 0.10. (ii) a = 0.05.

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