A sample of size n = 98 is drawn from a population whose standard deviation is o = 40. (a) Find the margin of error for a 99% condence interval for p. Round the answer to at least three decimal places. The margin of error for a 99% condence interval for p is E]. (b) If the sample size were u = 55, would the margin of error be larger or smaller? (Choose one) 1' , because the sample size is (Choose one) 'I