Evaluate the following formula for p 1minusp 2equals0, p overbarequals0.153061, q overbarequals1minusp overbar, x 1equals72, x 2equals18, n 1equals305, n 2equals283, ModifyingAbove p with caret 1equalsStartFraction x 1 Over n 1 EndFraction , and ModifyingAbove p with caret 2equalsStartFraction x 2 Over n 2 EndFraction . z equals StartFraction left parenthesis ModifyingAbove p with caret 1 minus ModifyingAbove p with caret 2 right parenthesis minus left parenthesis p 1 minus p 2 right parenthesis Over StartRoot StartFraction p overbar times q overbar Over n 1 EndFraction plus StartFraction p overbar times q overbar Over n 2 EndFraction EndRoot EndFraction Question content area bottom Part 1 zequals enter your response here (Round to two decimal places as needed.)