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 315 576 510 534 462 264 597 243 276 387 282 288 432 234 648 306 534 465 693 549 273 75 381 522 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 - H. pa - Select your answer 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? v that there has been a significance increase in business travel airfares over the one- We - Select your answer- year period. b. What is the sample mean domestic airfare for business travel for each year? 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)
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 315 576 510 534 462 264 597 243 276 387 282 288 432 234 648 306 534 465 693 549 273 75 381 522 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 - H. pa - Select your answer 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? v that there has been a significance increase in business travel airfares over the one- We - Select your answer- year period. b. What is the sample mean domestic airfare for business travel for each year? 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)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Transcribed Image Text:3.
4.
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.
6.
Current Year Previous Year
Current Year Previous Year
7.
315
576
510
534
8.
462
264
597
243
9.
276
387
282
288
432
234
648
306
10.
534
465
693
549
273
75
381
522
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 - ▼
Ha Hd
·Select your answer - ▼
What is the p-value?
(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?
v that there has been a significance increase in business travel. airfares over the one-
We
- Select your answer -
year period.
b. What is the sample mean domestic airfare for business travel for each year?
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)
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