At a particular airport in the United States, independent samples of domestic flights from two airlines were taken and the amount of time each flight was delayed was measured. The results follow.
Use Excel to estimate the difference in average delay time between the two airlines with a 95% level of confidence.

Question

At a particular airport in the United States, independent samples of domestic flights from two airlines were taken and the amount of time each flight was delayed was measured. The results follow.
  Use Excel to estimate the difference in average delay time between the two airlines with a 95% level of confidence.

Quizplus · Accepted Answer

The Answer of At a particular airport in the United States, independent samples of domestic flights from two airlines were taken and the amount of time each flight was delayed was measured. The results follow.
  Use Excel to estimate the difference in average delay time between the two airlines with a 95% level of confidence.

At a Particular Airport in the United States, Independent Samples