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Math · Statistics And Probability
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The sample data below represent the number of late and on time flights for the Delta, United and US Airways (Bureau of Transportation Statistics, March 2012) Flight Late On Time Delta 39 261 Airline United 51 249 US Airways 56 344 a. Formulate the hypotheses for a test that will determine if the population proportion of late flights is the same for al three airlines. Choose correct answer from above choice -Select your answer- H aSelect your answer b. Conduct the hypothesis test with a .05 level of significance. What is the p-value? Use Table 12.4 The p-value is-select your answer- What is your conclusion? -Select your answer c. Compute the sample proportion of late flights for each airline. What is the overall proportion of late flights for the three airlines? Round your answer to three decimal places. The overall proportion of late flights for the three airlines is

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