You may need to use the appropriate technology to answer this question. A travel association reported...
You may need to use the appropriate technology to answer this question.
A travel association reported the domestic airfare (in dollars) 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.
| Current Year |
Previous Year |
|---|---|
| 345 | 315 |
| 526 | 451 |
| 420 | 462 |
| 216 | 206 |
| 285 | 275 |
| 405 | 432 |
| 635 | 585 |
| 710 | 650 |
| 605 | 545 |
| 517 | 547 |
| 570 | 508 |
| 610 | 580 |
Calculate the test statistic. (Use current year airfare − previous year airfare. Round your answer to three decimal places.)
=
Calculate the p-value. (Round your answer to four decimal places.)
p-value =
(b)
What is the sample mean domestic airfare (in dollars) for business travel for each year?
current $=
previous$ =
(c)
What is the percentage change in mean airfare for the one-year period? (Round your answer to one decimal place.)
%=
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A travel association reported...
A travel association reported the domestic airfare (in dollars) for business travel for the current year...
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