BASIC PRACTICE OF STATISTICS+LAUNCHPAD
BASIC PRACTICE OF STATISTICS+LAUNCHPAD
8th Edition
ISBN: 9781319053093
Author: Moore
Publisher: MAC HIGHER
Question
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Chapter 25, Problem 25.35E

a.

To determine

To test: Whether there is significant difference among the proportion of girls who have played or not played video games that have resulted in serious fights.

To find: The two sample proportions, the z statistic and P-value.

b.

To determine

To test: Whether there is any significant difference between the proportion of girls who have played or not played video games and the results of serious fights.

To find: The chi-square test statistic and P-value.

c.

To determine

To show: The chi-square test statistic and the square of a z statistic are the same.

d.

To determine

To check: Whether z test can be used for the given situation.

To find: The most important difference between the chi-square test and z test.

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