gss7-nibrs7

CJ 317 CJ Statistics

Chapter 7 – GSS Exercises

Drug dataset:

Determine whether there is a difference in the quantity of drugs comparing male offenders with female offender. Hint: ANALYZE, COMPARE MEANS, INDEPENDENT SAMPLES T TEST, and set OFFENDER SEX as the grouping variable with Group 1 = 0 (male) and Group 2 = 1 (female).

1. Which t test is used?

2. Why?

3. What is the result of the comparison?

Determine whether there is a difference in the quantity of drugs comparing offenders younger than age 65 to offenders older than age 65. For the grouping variable use Offender Age. Instead of using groups, choose cut point and enter 65 to divide the offenders into those under 65 and those 65 and older.

4. Which t test is used?

5. Why?

6. What is the result of the comparison?