Find the Standardized Test Statistic, Z, to Test the Claim $\mathrm { p } _ { 1 } < \mathrm { p } _ { 2 }$

Multiple Choice

Find the standardized test statistic, z, to test the claim that $\mathrm { p } _ { 1 } < \mathrm { p } _ { 2 }$ Assume the samples are random and independent.
Sample statistics: $\mathrm { n } _ { 1 } = 550 , \mathrm { x } _ { 1 } = 121 , \text { and } \mathrm { n } _ { 2 } = 690 , \mathrm { x } _ { 2 } = 195$

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