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Please provide a detailed solution to both problems so that I know how you arrived at the answer. Thanks 15. FlightStats, Inc.

Please provide a detailed solution to both problems so that I know how you arrived at the answer. Thanks
15. FlightStats, Inc., collects data on the number of flights scheduled and the number of flights flown at major airports throughout the United States. FlightStats data showed 56% of flights scheduled at Newark, La Guardia, and Kennedy airports were flown during a three-day snowstorm (The Wall Street Journal,February 21, 2006). All airlines say they always operate within set safety parameters-if conditions are too poor, they don't fly. The following data show a sample of 400 scheduled flights during the snowstorm.
                           Airline
Did It Fly?  American Continental Delta United Total
Yes       48        69        68      25   210
No       52        41        62      35   190
Use the chi-square test of independence with a .05 level of significance to analyze the data. What is your conclusion? Do you have a preference for which airline you would choose to fly during similar snowstorm conditions? Explain.

This question was asked on May 10, 2010.

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