stats homework latest 2015

| August 30, 2017

Question
To examine the continuity and discontinuity in the criminal careers of 7,453 females of low socio-economic status, Tracy and Kempf-Leonard (1996) examined whether these females were nonoffenders, one-time offenders, recidivist offenders, or chronic offenders as juveniles and adults. Nonoffenders committed zero offenses, one-time offenders committed one offense, recidivist offenders committed two to four offenses, and chronic offenders committed five or more offenses. The following table describes the results. Using this table, answer the following questions:
Juvenile

Offender Group

Adult Offender Group

Nonoffender

One-Time

Recidivist

Chronic

Nonoffender

5954

149

41

4

One-Time

669

60

13

3

Recidivist

385

42

25

3

Chronic

73

15

12

5

a. Using the 5-step hypothesis testing procedure, test the null hypothesis that the two variables are independent. Use an alpha level of 0.05, and state each step of your hypothesis test. If you reject the null hypothesis, how strongly are the two variables related? (25 points)

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