Construct appropriate control chart and comment on process

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Reference no: EM131384786

Refer to given Exercise. Construct an OC curve for the c-chart. If the process average number of dietary errors per 100 trays increases to 10, what is the probability of detecting this on the first sample drawn after the change?

Exercise
The number of dietary errors is found from a random sample of 100 trays chosen on a daily basis in a health care facility. The data for 25 such samples are shown in Table.

(a) Construct an appropriate control chart and comment on the process.

(b) How many dietary errors do you predict if no changes are made in the process?

(c) Is the system capable of reducing dietary errors to 2, on average, per 100 trays, if no changes are made in the process?

Sample Number	Number of Dietary Errors	Sample Number	Number of Dietary Errors
1	9	14	8
2	6	15	8
3	4	16	7
4	7	17	6
5	5	18	4
6	6	19	12
7	16	20	7
8	8	21	6
9	7	22	8
10	9	23	6
11	3	24	8
12	6	25	5
13	10

Reference no: EM131384786

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