Air travel on Mountain Airlines for the past 18 weeks was: Passengees Week 321 328 333 341 337 352 353 349 10 11 12 366 363 372 373 384 300 13 14 15 16 394 392 403 17 18 411 Use regression to develop a forecast for the expected number of passengers for the next three weeks (Round your answers to two decimal points.) Week 19 Week 20 Week 21

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