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Homework Q Search this The Global Business Travel Association reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares shown for both years. Do not round intermediate calculations. Current Year Previous Year Current Year Previous Year 684 255 294 219 621 459 654 471 417 321 696 228 363 201 543 426 339 495 207 585 285 123 711 501 a. Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. Ho: Hd - Select your answer - o Ha Ha - Select your answer - vo What is the p-value? t-value (to 3 decimals) Degrees of freedom p-value is - Select your answer - Using a 0.05 level of significance, what is your conclusion? We - Select your answer - that there has been a significance increase in business travel airfares over the one-year period. - Select your answer - b. can conclude domestic airfare for business travel for each year? cannot conclude Current Year $ (to 2 decimals) Previous Year $ (to 2 decimals) c. What is the percentage change in the airfare for the one-year period? (to 2 decimals) Check My Work (3 remaining) w 22F ~ DO BD