Chapter 8, Problem 8.10P

For each problem, test the sample proportions for the significance of the difference.

a.

Sample 1	Sample 2
$P_{s1}=0.20$	$P_{s2}=0.17$
$N_1=114$	$N_2=101$

b.

Sample 1	Sample 2
$P_{s1}=0.60$	$P_{s2}=0.62$
$N_1=478$	$N_2=532$