Find the Standardized Test Statistic $z$ , to Test the Hypothesis That

Multiple Choice

Find the standardized test statistic, $z$ , to test the hypothesis that $p 1 < p 2$ . Use $\alpha = 0.10$ . The sample statistics listed below are from independent samples.
Sample statistics: $n _ { 1 } = 550 , x _ { 1 } = 121$ , and $n _ { 2 } = 690 , x _ { 2 } = 195$

A) -2.513
B) -2.132
C) -0.985
D) 1.116