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For the y 2eing, the air traffic control system in the United States is run by the federal government. Several groups disagree with this and would like to privatiz in deciding if, indeed, delays in the U.S. are "too common" might be to compare the flight delay information from the U.S. and other nations. air traffic control system. Among the arguments given for privatization is that flight delays are much too common in the United States. A first step You have in front of you the following chart, which summarizes the information from three samples of flights from the past six weeks. One of the samples is composed of domestic U.S. flights, one is composed of domestic Canadian flights, and one is composed of domestic British flights. The information recorded for each flight is the time (in minutes) that the plane was late to the arrival gate. (If the plane was early, the time recorded was negative.) Sample Sample Sample size Groups mean variance United States 239 16.9 96.8 Canada 205 17.7 93.1 Great Britain 229 18.2 102.9 Send data to calculator Send data to Excel You perform a one-way, independent-samples ANOVA test to decide if there are differences in the mean flight delay times among the three countries. Such a test uses the following statistic. Variation between the samples F = Variation within the samples For the flight delay information you've been given F =1.03. (a) Give the numerator degrees of freedom of this F statistic. (b) Give the denominator degrees of freedom of this F statistic. (c) Using the 0.01 level of significance, can you conclude from your ANOVA test that there are differences in the mean flight delay times among O Yes O No

For the y 2eing, the air traffic control system in the United States is run by the federal government. Several groups disagree with this and would like to privatiz in deciding if, indeed, delays in the U.S. are "too common" might be to compare the flight delay information from the U.S. and other nations. air traffic control system. Among the arguments given for privatization is that flight delays are much too common in the United States. A first step You have in front of you the following chart, which summarizes the information from three samples of flights from the past six weeks. One of the samples is composed of domestic U.S. flights, one is composed of domestic Canadian flights, and one is composed of domestic British flights. The information recorded for each flight is the time (in minutes) that the plane was late to the arrival gate. (If the plane was early, the time recorded was negative.) Sample Sample Sample size Groups mean variance United States 239 16.9 96.8 Canada 205 17.7 93.1 Great Britain 229 18.2 102.9 Send data to calculator Send data to Excel You perform a one-way, independent-samples ANOVA test to decide if there are differences in the mean flight delay times among the three countries. Such a test uses the following statistic. Variation between the samples F = Variation within the samples For the flight delay information you've been given F =1.03. (a) Give the numerator degrees of freedom of this F statistic. (b) Give the denominator degrees of freedom of this F statistic. (c) Using the 0.01 level of significance, can you conclude from your ANOVA test that there are differences in the mean flight delay times among O Yes O No

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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For the peing, the air traffic control system in the United States is run by the federal government. Several groups disagree with this and would like to privatizu in deciding if, indeed, delays in the U.S. are "too common" might be to compare the flight delay information from the U.S. and other nations. . air traffic control system. Among the arguments given for privatization is that flight delays are much too common in the United States. A first step You have in front of you the following chart, which summarizes the information from three samples of flights from the past six weeks. One of the samples is composed of domestic U.S. flights, one is composed of domestic Canadian flights, and one is composed of domestic British flights. The information recorded for each flight is the time (in minutes) that the plane was late to the arrival gate. (If the plane was early, the time recorded was negative.) Sample Sample Sample size Groups mean variance United States 239 16.9 96.8 Canada 205 17.7 93.1 Great Britain 229 18.2 102.9 Send data to calculator Send data to Excel You perform a one-way, independent-samples ANOVA test to decide if there are differences in the mean flight delay times among the three countries. Such a test uses the following statistic. Variation between the samples F = Variation within the samples For the flight delay information you've been given F =1.03. (a) Give the numerator degrees of freedom of this F statistic. (b) Give the denominator degrees of freedom of this F statistic. (c) Using the 0.01 level of significance, can you conclude from your ANOVA test that there are differences in the mean flight delay times among the three countries? O Yes O No
Transcribed Image Text:For the peing, the air traffic control system in the United States is run by the federal government. Several groups disagree with this and would like to privatizu in deciding if, indeed, delays in the U.S. are "too common" might be to compare the flight delay information from the U.S. and other nations. . air traffic control system. Among the arguments given for privatization is that flight delays are much too common in the United States. A first step You have in front of you the following chart, which summarizes the information from three samples of flights from the past six weeks. One of the samples is composed of domestic U.S. flights, one is composed of domestic Canadian flights, and one is composed of domestic British flights. The information recorded for each flight is the time (in minutes) that the plane was late to the arrival gate. (If the plane was early, the time recorded was negative.) Sample Sample Sample size Groups mean variance United States 239 16.9 96.8 Canada 205 17.7 93.1 Great Britain 229 18.2 102.9 Send data to calculator Send data to Excel You perform a one-way, independent-samples ANOVA test to decide if there are differences in the mean flight delay times among the three countries. Such a test uses the following statistic. Variation between the samples F = Variation within the samples For the flight delay information you've been given F =1.03. (a) Give the numerator degrees of freedom of this F statistic. (b) Give the denominator degrees of freedom of this F statistic. (c) Using the 0.01 level of significance, can you conclude from your ANOVA test that there are differences in the mean flight delay times among the three countries? O Yes O No
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