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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.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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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.)
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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