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Western Airlines merged with a smaller airline recently. Every day since the merger, a random sample...

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General Management

Western Airlines merged with a smaller airline recently. Everyday since the merger, a random sample of 30 Western flights hasbeen analyzed. A flight that takes off more than 10 minutes afterits scheduled departure time is considered to be late; otherwise,it is not late. Western’s performance over the past 10 days isshown in the table below.

Day 1 2 3 4 5 6 7 8 9 10 # Late Flights 4 2 5 9 2 3 3 1 2 8

(I) What type of control chart would we use to monitor thisprocess? ( Circle 1 ) (a) X-bar chart (b) R-chart (c) p-chart (d)c-chart

(II) And why?

(III) What are 2-sigma control limits for this process?

(IV) Is the process in control, after you plot and analyze theControl charts? Why/Why not?

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