x: Number of obs = 253
Two-sample test of proportions					y: Number of obs = 82
	Mean	Std. Err.	z	P>|z|	[95% Conf. Interval]
x	.9565217	.012821			.931393	.9816505
y	.7439024	.0482007			.6494307	.8383742
diff	.2126193	.0498768			.1148626	.310376
	under Ho:	.0373514	5.69	0.000

diff = prop(x) – prop(y); z = 5.6924

Ho: diff = 0

Ha: diff < 0; Ha: diff != 0; Ha: diff > 0

Pr(Z < z) = 1.0000; Pr(|Z| > |z|) = 0.0000; Pr(Z > z) = 0.0000