In 2012 the General Social Survey asked a random sample of a

In 2012, the General Social Survey asked a random sample of adults, \"Compared to most people, how informed are you about politics?\" Here are the data classified by their responses to this question and their age group:

Carry out a chi-square test. Test H0: there is no relationship between age and how politically informed the person is versus Ha: there is a relationship between age and how politically informed the person is. Use =0.01.

2(±0.0001)= ___

P(±0.0001)= ___

There is no a relationship between age and how politically informed the person is

There is a relationship between age and how politically informed the person is

Solution

x

9

0.70293

14

2

The chi-square value calculated = 0.70293

21

The chi-square value table with 12 degrees of freedom at 0.01

level of significance = 26.217

29

28

Conclusion: The calculated value of Chi-square is

less than the Chi-square table value we accept Null hypothesis

24

58

28

55

49

120

13

22

25

79

0

8

13

23