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Flying Home for the Holidays Does the airline you choose affect when you'll arrive at your destination? The dataset ArrivalTimes contains the difference between actual and scheduled arrival time from 1000 randomly sampled December flights for two of the major North American airlines, Delta Air Lines and United Air Lines. A negative difference indicates a flight arrived early. We are interested in testing whether the average difference between actual and scheduled arrival time is different between the two airlines Click here for the dataset associated with this question Click here to access StatKey Let group 1 be Delta flights and group 2 be United flights. (a) State the null and alternative hypotheses. 4- *! !! I! 2 SP !! P: !! P2 !! P !! PE #12 AD vs HIALI (b) Find the sample mean of each group, and calculate the difference in sample means. Round your answers to one decimal place. Mean for Delta Mean for United= i Difference in means= eTextbook and Media (c) Use StatKey or other technology to create a randomization distribution and find the p-value Round your answer to three decimal places. p-value e Textbook and Media (d) At a significance level of a = 0,01, what is the formal conclusion of the test? Reject H Do not reject H. e Textbook and Media StatKey Randomization Test for a Difference in Proportions Late Arrival Delta United) - Edit Data Randomization method Relocation - General 1 Sample Generate 10 Samples Generate 100 Samples Generale 1000 Samples Randomization Dotplot of Null Hypothesis: P1 = P2 Reset Plot Two-To Right to samples 0 mean-NaN Original Sample Group Count Sample Size Proportion Delta 67 1000 0.067 United 160 1000 0.160 Delta United 0.093 40 stderrerNaN 30 Randomization Sample 20 10 0 -0.05 -0,04 -0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 Help Statky 21.1 vaScript and should work well with any current browser including on Sound Convert feedback and bug reports can be sent to locksstatemail.com Pre Mode OFF Flying Home for the Holidays Does the airline you choose affect when you'll arrive at your destination? The dataset ArrivalTimes contains the difference between actual and scheduled arrival time from 1000 randomly sampled December flights for two of the major North American airlines, Delta Air Lines and United Air Lines. A negative difference indicates a flight arrived early. We are interested in testing whether the average difference between actual and scheduled arrival time is different between the two airlines Click here for the dataset associated with this question Click here to access StatKey Let group 1 be Delta flights and group 2 be United flights. (a) State the null and alternative hypotheses. 4- *! !! I! 2 SP !! P: !! P2 !! P !! PE #12 AD vs HIALI (b) Find the sample mean of each group, and calculate the difference in sample means. Round your answers to one decimal place. Mean for Delta Mean for United= i Difference in means= eTextbook and Media (c) Use StatKey or other technology to create a randomization distribution and find the p-value Round your answer to three decimal places. p-value e Textbook and Media (d) At a significance level of a = 0,01, what is the formal conclusion of the test? Reject H Do not reject H. e Textbook and Media StatKey Randomization Test for a Difference in Proportions Late Arrival Delta United) - Edit Data Randomization method Relocation - General 1 Sample Generate 10 Samples Generate 100 Samples Generale 1000 Samples Randomization Dotplot of Null Hypothesis: P1 = P2 Reset Plot Two-To Right to samples 0 mean-NaN Original Sample Group Count Sample Size Proportion Delta 67 1000 0.067 United 160 1000 0.160 Delta United 0.093 40 stderrerNaN 30 Randomization Sample 20 10 0 -0.05 -0,04 -0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 Help Statky 21.1 vaScript and should work well with any current browser including on Sound Convert feedback and bug reports can be sent to locksstatemail.com Pre Mode OFF