Chapter 8, Problem 8.2P

Two sociologists administered questionnaires to samples of undergraduates that measured attitudes toward interpersonal violence (higher scores indicate greater approval of interpersonal violence). Test the results as reported here for gender, racial, and social-class differences.

a.

Sample 1 (Males)	Sample 2 (Female)
${\bar{X}}_1=2.99$	${\bar{X}}_2=2.29$
$s_1=0.88$	$s_2=0.91$
$N_1=122$	$N_2=251$

b.

Sample 1 (Blacks)	Sample 2 (Whites)
${\bar{X}}_1=2.76$	${\bar{X}}_2=2.49$
$s_1=0.68$	$s_2=0.91$
$N_1=43$	$N_2=304$

c.

Sample 1 (White Collar)	Sample 2 (Blue Collar)
${\bar{X}}_1=2.46$	${\bar{X}}_2=2.67$
$s_1=0.91$	$s_2=0.87$
$N_1=249$	$N_2=97$

Summarize your results in terms of the significance and the direction of the differences. Which of these three factors seems to make the biggest difference in attitudes toward interpersonal violence?