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What is the p-value for the hypothesis test

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Reference no: EM13251136

Chicago O'Hare and Atlanta Hartsfield-Jackson are the two busiest airports in the UnitedStates. The congestion often leads to delayed flight arrivals as well as delayed flight departures.The Bureau of Transportation tracks the on-time and delayed performance at majorairports (Travel & Leisure, November 2006). Aflight is considered delayed if it is morethan 15 minutes behind schedule.

The following sample data show the delayed departuresat Chicago O'Hare and Atlanta Hartsfield-Jackson airports.Chicago O'Hare Atlanta Hartsfield-JacksonFlights 900 1200Delayed Departures 252 312

a. State the hypotheses that can be used to determine whether the population proportionsof delayed departures differ at these two airports.

b. What is the point estimate of the proportion of flights that have delayed departures atChicago O'Hare?

c. What is the point estimate of the proportion of flights that have delayed departuresat Atlanta Hartsfield-Jackson?

d. What is the p-value for the hypothesis test? What is your conclusion?

Reference no: EM13251136

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