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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 31E

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The contingency table to the right shows counts of the types of gasoline
bought during the week and during weekends.
(a) Find the value of chi-squared and Cramer's V for this table.
(b) Interpret these values. What do these tell you about the association
in the table?
Weekday
Weekend
Total
Premium
138
64
202
Plus
107
36
143
Regular
485
135
620
Total
730
235
965
(a) x = (Round to two decimal places as needed.)

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