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 261 324 309 297 549 249 a. Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. Ho: H-Select your answer. H₂H-Select your answer. What is the p-value? Current Year Previous Year 432 591 603 570 633 312 513 708 585 0 (to 3 decimals) 480 552 552 255 267 480 693 540 t-value 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. b. What is the sample mean domestic airfare for business travel for each year? (to 2 decimals) Current Year $ (to 2 decimals) Previous Year c. What is the percentage change in the airfare for the one-year period? % (to 2 decimals)
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 261 324 309 297 549 249 a. Formulate the hypotheses and test for a significant increase in the mean domestic airfare for business travel for the one-year period. Ho: H-Select your answer. H₂H-Select your answer. What is the p-value? Current Year Previous Year 432 591 603 570 633 312 513 708 585 0 (to 3 decimals) 480 552 552 255 267 480 693 540 t-value 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. b. What is the sample mean domestic airfare for business travel for each year? (to 2 decimals) Current Year $ (to 2 decimals) Previous Year c. What is the percentage change in the airfare for the one-year period? % (to 2 decimals)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![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
591
432
603
570
633
312
513
480
552
552
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 - 0
H₂H-Select your answer
o
What is the p-value?
-
Current Year $
Previous Year $
708
585
(to 3 decimals)
t-value
Degrees of freedom
P-value is - Select your answer
Using a 0.05 level of significance, what is your conclusion?
We-Select your answer
b. What is the sample mean domestic airfare for business travel for each year?
(to 2 decimals)
(to 2 decimals)
Current Year Previous Year
261
324
309
297
549
249
c. What is the percentage change in the airfare for the one-year period?
% (to 2 decimals)
444
that there has been a significance increase in business travel airfares over the one-year period
255
267
480
693
540](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F95b27bbf-a33e-4d69-938a-12d649d4f4fe%2F5a63db9f-c8d9-456b-b8be-40315ff8c5c4%2Fkwiuych_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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
591
432
603
570
633
312
513
480
552
552
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 - 0
H₂H-Select your answer
o
What is the p-value?
-
Current Year $
Previous Year $
708
585
(to 3 decimals)
t-value
Degrees of freedom
P-value is - Select your answer
Using a 0.05 level of significance, what is your conclusion?
We-Select your answer
b. What is the sample mean domestic airfare for business travel for each year?
(to 2 decimals)
(to 2 decimals)
Current Year Previous Year
261
324
309
297
549
249
c. What is the percentage change in the airfare for the one-year period?
% (to 2 decimals)
444
that there has been a significance increase in business travel airfares over the one-year period
255
267
480
693
540
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