need help

A sample of size n = 99 is drawn from a populaljon whose standard deviation is o = 22. (a) Find the margin of error for a 95% condence interval for p. Round the answer to at least three decimal place The margin of error for a 95% condence interval for p. is D. (b} If the sample size were u = 43, would the margin of error be larger or smaller? (Choose one) 1" , because the sample size is (Choose one) 1' . A sample of size n = 86 is drawn from a normal population whose standard deviation is o = 9.7. The sample mean is E = 46.96. (a) Construct a 90% condence interval for p. Round the answer to at least two decimal places. A 90% condence interval for the mean is E]