Ch 7: Test Yourself

3d human with a red question mark

1. Indicate which measure of relationship or association – in addition to chi-square –you would use to test each of the following null hypotheses (lambda, gamma, or Pearson r):

(a) there is no relationship between city of birth and the type of music preferred.

(b) there is no relationship between weight and number of siblings.

(c) there is no relationship between hours spent exercising per week and number of texts sent per day.

(d) there is no relationship between schooling completed (measured as high school, some college, college, graduate school) and frequency of reading books (measured as daily, a few times a week, monthly, yearly)

 

 

2.  For the following crosstable, answer these questions:

(a) what is the null hypothesis being tested here?

(b) Which is the independent variable and which is the dependent variable?

(c) put into words what the 56.3 says:

(d) what would you conclude about the hypothesis based on these data? Put into words what this data analysis is telling us.

(e) Which statistics would you use to test the relationship? 

Count

Percent

White Males Males of Color White Females Females of Color Total
Junior College or less

55

28.4

36

56.3

128

72.7

30

75.0

249

52.5

College or more

139

71.6

28

43.8

48

27.3

10

25.0

225

47.5

Totals

194

40.9

64

13.5

176

37.1

40

8.4

474

100.0

 

Toy Men Education

 

Answers

1.

a) lambda

b) Pearson r

c) Pearson r

d) gamma

2.

a) There is no relationship between gender/race and educational level completed.

b) Independent is gender/race and dependent is educational level

c) 56.3 percent of men of color have a junior college education or less.

d)  Men have more education than women, and whites have more education than people of color, and white males have the most education, followed by men of color, white females, and females of color who have almost the same education and white women.

e)  Chi-square and lambda

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