Airline travelers often choose which airport to fly from based on flight cost. Cost data (in dollars) for a sample of flights to eight cities from Dayton Ohio and Louisville Ky. Were collected to help determine which of the two airports was more costly to fly from (The Cincinnati Enquirer, February 19, 2006). A researcher argues that it is significantly more costly to fly out of Dayton than Louisville. Use the sample data to see whether they support the researcher's argument. Use α = .05) as the level ofsignificance.

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Destination Chicago-O Hara Grand Rapid, Michigan Portland, Oregon Atlanta Seattle South Bend, Indiana Davton S319 192 503 256 339 379 268 288 Louisville S142 213 317 387 317 167 273 274 vliaml Dallas-Ft. Worth