How long does it take to fly from Atlanta to New York’s LaGuardia airport? There are many components of the time elapsed, but one of the more stable measurements is the actual in-air time. For a sample of sixty-one flights between these destinations on Sundays in April, the time in minutes (y) gave the following results:

Find a 99% confidence interval for the average flight time.

Transcribed Image Text:

61 61 Vi = 6450 and 〉 y:ー684.900 i-l