Find the standardized test statistic, z, to test the claim that p1< p2. Use alpha = 0.10. The sample statistics listed below are from independent samples.Sample statistics: n1 = 550, x1 = 121, and n2 = 690, x2 = 195
Choices are:
A 1.116
B -2.132
C -0.985
D -2.513