Chapter 8, Problem 8.9P

$\boxed{SOC}$ A survey has been administered to random samples of respondents in each of five nations. Respondents were asked: “How satisfied are you with your life as a whole?” Responses varied from 1 (very dissatisfied) to 10 (very satisfied). Conduct a test for the significance of the difference in mean scores for each nation between men and women.

Brazil
Males	Females
${\bar{X}}_1=7.7$	${\bar{X}}_1=7.6$
$s_1=2.0$	$s_1=2.2$
$N_1=712$	$N_1=783$

Ukraine
Males	Females
${\bar{X}}_1=5.8$	${\bar{X}}_1=5.5$
$s_1=2.3$	$s_1=2.4$
$N_1=446$	$N_1=549$

Vietnam
Males	Females
${\bar{X}}_1=7.2$	${\bar{X}}_1=7.0$
$s_1=1.9$	$s_1=1.8$
$N_1=762$	$N_1=720$

South Africa
Males	Females
${\bar{X}}_1=6.8$	${\bar{X}}_1=7.2$
$s_1=2.5$	$s_1=2.3$
$N_1=1492$	$N_1=1482$

Egypt
Males	Females
${\bar{X}}_1=5.6$	${\bar{X}}_1=5.9$
$s_1=2.7$	$s_1=2.7$
$N_1=1557$	$N_1=1493$