EBK MODERN BUSINESS STATISTICS WITH MIC
5th Edition
ISBN: 9780100475038
Author: williams
Publisher: YUZU
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Textbook Question
Chapter 12.3, Problem 19E
Late Flight Comparison Across Airlines. The sample data below represent the number of late and on time flights for Delta, United, and US Airways.
a. Formulate the hypotheses for a test that will determine if the population proportion of late flights is the same for all three airlines.
b. Conduct the hypothesis test with a .05 level of significance. What is the p-value and what is your conclusion?
c. Compute the sample proportion of late flights for each airline. What is the overall proportion of late flights for the three airlines?
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Chapter 12 Solutions
EBK MODERN BUSINESS STATISTICS WITH MIC
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