Listed below are the costs (in dollars) of flights from New York (JFK) to San Francisco for
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Listed below are the costs (in dollars) of flights from New York (JFK) to San Francisco for US Air, Continental, Delta, United, American, Alaska Airlines, and Northwest. Use a 0.01 significance level to test the claim that flights scheduled one day in advance cost more than flights scheduled 30 days in advance. What strategy appears to be effective in saving money when flying?
Transcribed Image Text:
Flight scheduled one day in advance 456 614628 1088 943 567 536 Flight scheduled 30 days in advance 244260264264 278 318 280
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