Need help with Stats & Regression problems ... Thanks !!

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A magazine subscriber study asked, "In the past 12 months, when traveling for business, what type of airline ticket did you purchase most often?" A second question asked if the type of airline ticket purchased most often was for domestic or international travel. Sample data obtained are shown in the following table. Type of Flight Type of Ticket Domestic International First class 24 17 Business class 100 126 Economy class 518 135 (a) Using a 0.05 level of significance, is the type of ticket purchased independent of the type of flight? State the null and alternative hypotheses. O H: The type of ticket purchased is not independent of the type of flight. Ha: The type of ticket purchased is independent of the type of flight. O Ho: The type of ticket purchased is mutually exclusive from the type of flight. He: The type of ticket purchased is not mutually exclusive from the type of flight. O Ho: The type of ticket purchased is independent of the type of flight. Ha: The type of ticket purchased is not independent of the type of flight. O Ho: The type of ticket purchased is not mutually exclusive from the type of flight. H,: The type of ticket purchased is mutually exclusive from the type of flight. Find the value of the test statistic. (Round your answer to three decimal places.)Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. We conclude that the the type of ticket purchased is not independent of the type of flight. O Do not reject Ho. We cannot conclude that the type of ticket purchased and the type of flight are not independent. O Do not reject H . We cannot conclude that the type of ticket purchased and the type of flight are independent. O Reject Ho. We conclude that the type of ticket purchased is independent of the type of flight. (b) Discuss any dependence that exists between the type of ticket and type of flight. O A lower percentage of economy class tickets are purchased for domestic flights compared to international flights. First class and business class tickets are purchased more for domestic flights. O A higher percentage of first class and business class tickets are purchased for international flights compared to domestic flights. Economy class tickets are purchased more for domestic flights. O A higher percentage of first class and business class tickets are purchased for domestic flights compared to international flights. Economy class tickets are purchased more for international flights. O The type of ticket purchased is independent of the type of flight.The sample data below represent the number of late and on time flights for three airlines. Airline Flight 1 2 3 Late 15 27 32 On Time 285 273 368 (a) Formulate the hypotheses for a test that will determine if the population proportion of late flights is the same for all three airlines. O H: All population proportions are not equal. HA: P1 = P2 = P3 O Ho: Not all population proportions are equal. Ha: P1 = P2 = P3 O Ho: P1 = P2 = P3 H.: All population proportions are not equal. OH: P1 = P2 = P3 He: Not all population proportions are equal. (b) Conduct the hypothesis test with a 0.05 level of significance. Find the value of the test statistic. (Round your answer to three decimal places.)Find the pvalue. (Round your answer to four decimal places.) State your conclusion. 0 Reject HO. We cannot conclude that not all of the population proportions are equal. 0 Do not reject H0. We conclude that not all of the population proportions are equal. 0 Do not reject H0. We cannot conclude that not all of the population proportions are equal. 0 Reject H0. We conclude that not all of the population proportions are equal. (c) Compute the sample proportion of late ights for each airline. 9] = : p2 = E p3 = E what is the overall proportion of late ights for the three airlines? 5:: The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. Suppose a portion of the survey results follow. Brokerage Speed Satisfaction A 3.4 3.5 B 3.3 3.5 C 3.4 3.9 D 3.6 3.6 E 3.2 2.9 F 3.8 2.8 G 3.8 3.6 H 2.6 2.6 H 2.7 2.3 4.0 4.0 K 2.5 2.5These ratings data on x = the quality of the speed of execution and y = overall satisfaction with electronic trades provided the estimated regression equation y = 0.243 + 0.896x. At the 0.05 level of significance, test whether speed of execution and overall satisfaction are related. (Use the F test.) State the null and alternative hypotheses. OH : B, 20 Ha : B,