Question

As a criminologist, you are interested in the factors related to juvenile offending. You think that time spent studying influences delinquent behavior. In a group of 21 high school students, you collect information about the number of times a juvenile has broken curfew this month and how much time they spend studying this month. You break the sample into three groups, those who spend no time studying, those who spend less than 1 hour per day, and those who spend more than 1 hour per day).

a) What is the independent variable?              

b) What is the dependent variable?

c) What is the null hypothesis?

d) What is the research hypothesis?

e) Interpret the results.

No Time	Less Than 1 Hour	More Than 1 Hour
10	5	7
10	1	5
30	4	1
10	1	2
2	10	5
15	5	2
5	2	1

Answer 1

c) Time spend is independenet variable. In this three types of levels
ie.. No Time, Less than 1 hours, More than 1 hour
b) Number of study hours is dependent variable

c) H0: There is no significance difference among the three groups

H1: There is significance difference at least two groups means

Let the los be alpha = 5%

d) From the given data

e) thus we conclude that there is significance difference at least two groups means