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Category > Business & Finance Posted 19 Jun 2017 My Price 12.00

Central Airlines would like to set up a control chart to monitor its on-time arrival performance

21.    Central Airlines would like to set up a control chart to monitor its on-time arrival performance. Each day over a 10-day period Central Airlines chose 30 flights at random and tracked the number of late arrivals in each sample. The results are as follows:

 

 

DAY

 

SAMPLE SIZE

NO. OF LATE- ARRIVING FLIGHTS

1

30

2

2

30

3

3

30

4

4

30

0

5

30

1

6

30

6

7

30

4

8

30

2

9

30

3

10

30

5

 

a.   (*) Calculate p.

b.  (**) Set up a p chart to track the proportion of late arrivals. (Note: Each sample consists of 30 observations.)

c.   (***) Airline travel is characterized by busy and slow seasons. As a result, what is “normal” during one time of the year wouldn’t be “normal” at some other time. What difficulties might arise as a result of using a single control chart to track the proportion of late arrivals? What could Central Airlines do about this?

Answers

Alpha Geek
(8)
Status NEW Posted 19 Jun 2017 09:06 AM My Price 12.00

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Attachments

file 1497864143-1431879_1_636333789285551628_Airline-Control-Chart.xlsx preview (159 words )
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