https://oregonstateuniversity-my.sharepoint.com/:x:/g/personal/galicidi_oregonstate_edu/EbIgv2n0CKFPoxwPwTI3JHcB4YFkMeheJ7lTBiTnZz1ASA?e=dI5oAF

2 3 Count of ORIGIN Column Labels 4 Row Labels AA AS 86 DL F9 G4 HA NK OO UA WN Grand Total 5 ABQ 13 13 6 ANC 62 7 ATL 92 92 B AUS 31 31 you only really need the row for PDX (for me row 42). (1) What is the point estimate for the difference between the fraction of flights out of PDX run by Southwest (WN) and the flights out of PDX run by Alaska (AS)? Please show answer in a complete sentence and/or show your work. (2) What is the confidence interval for this distance (center +/-margin of error) for this difference. Please show your work (what terms you're multiplying/dividing) and answer in a complete sentence. (3) Compute a hypothesis test for the question: is there evidence of a difference between the market share of Alaska vs. Southwest. Write out the null and alternative hypotheses and level of significance alpha. (4) Calculate the test statistic and find the p-value. Please show your work. (5) Write your conclusion. This should both say whether or not you reject the null and say what this means in everyday language