a * For a single proportion the margin of e confidence interval is i is largest est for any given when sample size n and confidence level C P = 0.5. They lear ontidence leads us to use = 0.5 tor planning the Purposes. The same kind of se 2 sample problem, The I result is true for margin of erion of the confidence interval for the dif exence between 2 proportions is the when Pi = P2 = 0.5 you are planning a survey largest and will calculate a 959 confidence interval for the difference between 2 proportions when the date are collected. you would like the margin of evroll of the interval to be less than or equal to o.055 you will use the same same sample size for both populations . ( a) How large a value of n's needed ()line a general formula doin in terms of the desired margin of error m and the critical value ? ' show all work in detail