Kaminski et al. (1992) present data on the number of orders per truck at a distribution center. Some… 1 answer below »

Kaminski et al. (1992) present data on the number of orders per truck at a distribution center. Some of this data is shown in Table 7E.20.

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Order Essay

(a) Set up a chart for the number of orders per truck. Is the process in control?

(b) Set up a chart for the number of orders per truck, assuming a geometric distribution with = 1. Is the process in control?

(c) Discuss the findings from parts (a) and (b). Is the Poisson distribution a good model for these data? Is there evidence of this in the data?

TABLE 7 E.20

Number of Orders per Truck for Exercise 7.69

 

No. of

 

No. of

 

No. of

 

No. of

Truck

Orders

Truck

Orders

Truck

Orders

Truck

Orders

1

 

9

 

17

 

25

 

2

 

10

 

18

 

26

 

3

 

11

 

19

 

27

 

4

 

12

 

20

 

28

 

5

 

13

 

21

 

29

 

6

 

14

 

22

 

30

 

7

 

15

 

23

 

31

 

8

 

16

 

24

 

32