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Week 5 Assignment 3 Quality Control Scenario Day 1 2 3 4 5 Sample 1 20 25 30 35 40 Sample 2 15 18 20 25 26 Days 1 2 3 4 5 Sample 3 18 22 30 30 40...
An airline company wants to monitor the quality level of incoming flights, based on how late the flights have been with respect to the scheduled arrival times. The company counts any flight that is delayed more than 20 minutes as a delayed flight.The company’s quality control department also considered a larger sample to determine the average fraction of “defective” flights, where they considered a “defective” flight to be any flight that was delayed more than 20 minutes. Samples were collected over the same five days for 100 flights on each day.See attached to view a sample of the arrival-time data over five consecutive days and the results.If you were to create the control charts for the two cases—one where they are measuring the actual minutes of delay, and the other where they are monitoring the fraction and number of flights delayed out of the total number of flights—then how would you construct the control charts? Determine the acceptable upper and lower limits of the relevant charts.
