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A survey of high school girls classified them by two attributes: whether or not they participated...

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Question

Statistics

A survey of high school girls classified them by two attributes:whether or not they participated in sports and whether or not theyhad one or more older brothers.

Older brother

Participated In sports

TOTAL

Yes

No

Yes

12

8

20

No

13

27

40

TOTAL

25

35

60

  1. Use the following data to test the null hypothesis that thesetwo attributes of classification are independent.
  2. Suppose we do the below hypothesis test instead:

where,

p1-Propotion of young girlsparticipated in sports of those who has a brother

p2-Propotion of young girlsparticipated in sports of those who does not have a brother.

What would be the test statistic andthe p value for this test?

Answer & Explanation Solved by verified expert
4.2 Ratings (495 Votes)
a to test the independence we Use the Null Hypothesis Ho Thesetwo atributes are independentThe alternate hypothesis is    See Answer
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