Question

1. Are there statistically significant differences in family income between women and men in the GSS? Use the variables INCOME06 and SEX to answer this question. You can assume that income is measured at the interval-ratio level. Use a 95% confidence level. (10 points)

	RESPONDENTS SEX	N	Mean	Std. Deviation	Std. Error Mean
TOTAL FAMILY INCOME	MALE	593	17.31	5.625	.231
	FEMALE	697	15.94	6.013	.228

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t
TOTAL FAMILY INCOME	Equal variances assumed	6.617	.010	4.188
	Equal variances not assumed			4.210

Independent Samples Test
		t-test for Equality of Means
		df	Sig. (2-tailed)	Mean Difference
TOTAL FAMILY INCOME	Equal variances assumed	1288	.000	1.366
	Equal variances not assumed	1276.464	.000	1.366

Independent Samples Test
		t-test for Equality of Means
		Std. Error Difference	95% Confidence Interval of the Difference
			Lower	Upper
TOTAL FAMILY INCOME	Equal variances assumed	.326	.726	2.006
	Equal variances not assumed	.324	.729	2.002

Answer 1