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 Previous Year Year 345 303 526 475 420 462 216 206 285 263 405 432 635 585 710 650 605 545 517 547 570 508 610 seo (a) Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. Calculate the test statistic. (Use current year airfare - previous year airfare. Round your answer to three decimal places.) Calculate the pvalue. (Round your answer to four decimal places.) pvalue Using a 0.05 level of significance, what is your conclusion? O Do not reject H We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. O Reject H We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. O Do not reject H We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. . O Reject H We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. (b) What is the sample mean domestic airfare (in dollars) for business travel for each year? current s previous s (c) What is the percentage change in mean airfare for the one-year period? (Round your answer to one decimal place.)
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 Previous Year Year 345 303 526 475 420 462 216 206 285 263 405 432 635 585 710 650 605 545 517 547 570 508 610 seo (a) Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. Calculate the test statistic. (Use current year airfare - previous year airfare. Round your answer to three decimal places.) Calculate the pvalue. (Round your answer to four decimal places.) pvalue Using a 0.05 level of significance, what is your conclusion? O Do not reject H We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. O Reject H We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. O Do not reject H We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. . O Reject H We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period. (b) What is the sample mean domestic airfare (in dollars) for business travel for each year? current s previous s (c) What is the percentage change in mean airfare for the one-year period? (Round your answer to one decimal place.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text: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
Previous
Year
Year
345
303
526
475
420
462
216
206
285
263
405
432
635
585
710
650
605
545
517
547
570
508
610
580
(a) Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period.
O Ho: Hdz0
H: H < 0
Ha: Hd> 0
0 5 Pri :0H O
H: H = 0
Ho: Hg# 0
H: Hg = 0
O Ho: Hg = 0
H: H 0
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 =
Using a 0.05 level of significance, what is your conclusion?
O Do not reject H.. We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period.
O Reject H.. We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period.
O Do not reject H.. We can conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period.
O Reject H,. We cannot conclude that there has been a significant increase in the mean domestic airfare for business travel for the one-year period.
(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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