Question 8. During September 2018, United Airlines introduced a new two-line boardingprocess intended to decrease gate congestion, passenger anxiety, and time to board the plane.Independent random samples of similar cross-country flights for United Airlines andAmerican Airlines were obtained and the boarding time (in minutes) for each was recorded.Assume both populations are normally distributed and the population standard deviations areunequal.AirlineUnitedAmerican712Sample SizeSample Mean41.554.9Sample StandardDeviation14.1a) Find a 99% confidence interval for the difference in boarding time between the twoairlines.b) Does the confidence interval produced in part a suggest at the 1% level that themean boarding time is different for the two airlines? How do you know?c) Describe what committing a Type I error would be in this situation.d) Describe what committing a Type II error would be in this situation.

From given data we have :x¯1=7 x¯2=12n1=41.5n2=54.9s1=9.1s2=14.1

Answered: Question 8. During September 2018,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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