8.9 A travel agency wanted to compare the noncorporate prices charged by two major motel chains for a standard-quality single room at major airport locations around the country. A random sample of five Best Eastern motels and an independent sample of six Travelers' Inn motels all located at major airports, gave the approximate current total costs of a standard single room as shown below. Find a 95% confidence intery estigate of the difference between median escla at Best Exstom Travelers motels. Best Eastern: $68, 75, 92, 79, 95 Travelers' Inn: $69, 76, 81, 72, 75, 80 1. (60/100) Refer to statements of Problem 8.9 (p. 308 in NSI). (1) (10/60) write the null and alternative hypotheses (2) (17/60) compare the difference in medians by permutation test; report p-value and its 95% confidence interval if random-sample permutation is performed (3) (16/60) compare the difference in medians by Wilcoxon-Mann-Whitney test (4) (17/60) construct a 95% 2-sided exact confidence interval for the group difference and calculate the achieved confidence level. Do (3) and (4) "by hand" (Table J and/or R/SAS codes) and check your results with what you obtain from proc npar1way or wilcox.test(). Please use R.
8.9 A travel agency wanted to compare the noncorporate prices charged by two major motel chains for a standard-quality single room at major airport locations around the country. A random sample of five Best Eastern motels and an independent sample of six Travelers' Inn motels all located at major airports, gave the approximate current total costs of a standard single room as shown below. Find a 95% confidence intery estigate of the difference between median escla at Best Exstom Travelers motels. Best Eastern: $68, 75, 92, 79, 95 Travelers' Inn: $69, 76, 81, 72, 75, 80 1. (60/100) Refer to statements of Problem 8.9 (p. 308 in NSI). (1) (10/60) write the null and alternative hypotheses (2) (17/60) compare the difference in medians by permutation test; report p-value and its 95% confidence interval if random-sample permutation is performed (3) (16/60) compare the difference in medians by Wilcoxon-Mann-Whitney test (4) (17/60) construct a 95% 2-sided exact confidence interval for the group difference and calculate the achieved confidence level. Do (3) and (4) "by hand" (Table J and/or R/SAS codes) and check your results with what you obtain from proc npar1way or wilcox.test(). Please use R.
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:8.9 A travel agency wanted to compare the noncorporate prices charged by
two major motel chains for a standard-quality single room at major
airport locations around the country. A random sample of five Best
Eastern motels and an independent sample of six Travelers' Inn motels
all located at major airports, gave the approximate current total costs of
a standard single room as shown below. Find a 95% confidence intery
estigate of the difference between median escla at Best Exstom
Travelers motels.
Best Eastern: $68, 75, 92, 79, 95
Travelers' Inn: $69, 76, 81, 72, 75, 80
1. (60/100) Refer to statements of Problem 8.9 (p. 308 in NSI).
(1) (10/60) write the null and alternative hypotheses
(2) (17/60) compare the difference in medians by permutation test; report p-value and its 95%
confidence interval if random-sample permutation is performed
(3) (16/60) compare the difference in medians by Wilcoxon-Mann-Whitney test
(4) (17/60) construct a 95% 2-sided exact confidence interval for the group difference and
calculate the achieved confidence level.
Do (3) and (4) "by hand" (Table J and/or R/SAS codes) and check your results with what you
obtain from proc npar1way or wilcox.test().
Please use R.
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