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Math 110 Module Update... Q Section 9.3: 11. Flight Operations The table below lists the times (min) required for randomly selected flights to taxi out for takeoff and the corresponding times (min) required to taxi in after landing. (See Data Set 15 in Appendix B.) All flights are Flight 1 of American Airlines from New York (JFK) to Los Angeles (LAX). Construct a 90% confidence interval estimate of the difference between taxi-out times and taxi-in times. What does the confidence interval suggest about the claim of the flight operations manager that for flight delays, more of the blame is attributable to taxi-out times at JFK than taxi-in times at LAX? Taxi-Out Time 30 19 12 19 18 22 37 13 14 15 31 15 Taxi-In Time 12 13 8 21 17 11 12 12 15 26 9 11 14. Is Blood Pressure the Same for Both Arms? Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman (based on data from "Consistency of Blood Pressure Differences Between the Left and Right Arms," by Eguchi, et al., Archives of Internal Medicine, Vol. 167). Use a 0.01 significance level to test for a difference between the measurements from the two arms. What do you conclude? Right arm 102 101 94 79 79 Left arm 175 169 182 146 144 PAGE 13816. Self-Reported and Measured Male Heights As part of the National Health and Nutrition Examination Survey, the Department of Health and Human Services obtained self-reported heights and measured heights for males aged 1216. All measurement are in inches. Listed below are sample results. Construct a 99% confidence interval estimate of the mean difference between reported heights and measured heights. Interpret the resulting confidence interval. and comment on the implications of whether the confidence interval limits contain 0. Reported Height 68 71 63 70 71 60 65 64 54 63 66 72 Measured Height 67.9 69.9 64.9 68.3 70.3 60.6 64.5 67.0 55.6 74.2 65.0 70.8 20. Forecast and Actual Temperatures The author recorded actual temperatures {F) along with the temperatures (\"17) that were predicted five days earlier. Results are listed below. Construct a 99% confidence interval eStimate of the mean of the population of all \"actuala'forecast\" differences. What does the result suggest about the accuracy of the forecast temperatures? Date 9l15 912 2 9323 9127 9.80 Actual High as 32 31 74 62 High Forecast Five Days Earlier 78 73 79 70 69 PAGE 139