Question

[10] As a transportation engineer, Regan has worked on a number of projects around the tristate area, including the ongoing rebuild of LaGuardia airport. In terms of takeoffs, is LaGuardia busier than JFK? To test this out, Regan took a random sample of times between takeoffs at LaGuardia; later, he took a second random sample of times between takeoffs at JFK airport (making sure the weather conditions and time of day was similar in both instances), results below. At the .05 level of significance, is there a difference in the average time between takeoffs at LaGuardia and JFK? (times are given in seconds below)

          [10] As a transportation engineer, Regan has worked on a number of projects around the tristate area, including the ongoing rebuild of LaGuardia airport. In terms of takeoffs, is LaGuardia
busier than JFK? To test this out, Regan took a random sample of times between takeoffs at
LaGuardia; later, he took a second random sample of times between takeoffs at JFK airport
(making sure the weather conditions and time of day was similar in both instances), results
below. At the .05 level of significance, is there a difference in the average time between takeoffs
at LaGuardia and JFK? (times are given in seconds below)

Added by Tonya P.

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