This Question: 1 pt 4 of 14 (3 complete) This Test: 14 pts possible You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 34% of air passengers prefer an aisle seat. n= (Round up to the nearest integer.)This Question: 1 pt 5 of 14 (3 complete) This Test: 14 pts possible Here are summary statistics for randomly selected weights of newborn girls: n = 151, x = 28.7 hg, s=7.8 hg. Construct a confidence interval estimate of the mean. Use a 99% confidence level. Are these results very different from the confidence interval 26.5 hg