(1 point) A recent report for a regional airline reported thatthe mean number of hours of flying time for its pilots is 66 hoursper month. This mean was based on actual flying times for a sampleof 49 pilots and the sample standard deviation was 8.5 hours.
2. Calculate a 99% confidence interval estimate of thepopulation mean flying time for the pilots. Round your result to 4decimal places.
( , )
3.Using the information given, what is the smallest sample sizenecessary to estimate the mean flying time with a margin of errorof 1 hour and 99% confidence? Note: For consistency's sake, roundyour t* value to 3 decimal places before calculating the necessarysample size.
Choose n =
