In the Context of a Two-Proportions Z-Test, Explain What Each $\mathrm { x } _ { 1 } , \mathrm { n } _ { 1 } , \mathrm { p } 1 , \mathrm { p } 1 , \mathrm { p } _ { \mathrm { p } }$

Essay

In the context of a two-proportions z-test, explain what each of the following symbols represents: $\mathrm { x } _ { 1 } , \mathrm { n } _ { 1 } , \mathrm { p } 1 , \mathrm { p } 1 , \mathrm { p } _ { \mathrm { p } }$ .