Consider a population proportion p = 0.62.a-1. Calculate the expected value and the standard error of P−P− with n = 30. (Round "expected value" to 2 decimal places and "standard deviation" to 4 decimal places.)a-2. Is it appropriate to use the normal distribution approximation for P−P− ?YesNob-1. Calculate the expected value and the standard error of P−P− with n = 34. (Round "expected value" to 2 decimal places and "standard deviation" to 4 decimal places.)b-2. Is it appropriate to use the normal distribution approximation for P−P− ?YesNo