Determining the sigma control charts

Reference no: EM13975106

An adhesives manufacturer periodically selects a sample of its product and glues 6 toothpicks together, in pairs. A measurement is then made of the number of pounds required to separate the toothpicks. The following data represent 15 samples, each consisting of 3 pairs of toothpicks, and the number of pounds required to separate each pair. Given these measurements, use one or more appropriate 3-sigma control charts in evaluating whether the process is in control.

5	15	25	12	Sample	Pound	s to Separate Pair
6	8	26	9	Number	1	2	3
7	14	27	12
8	13	28	16	1	28	24	27
9	10	29	12	2	29	27	27
10	12	30	11	3	27	26	28
11	7	31	11	4	28	31	30
12	12	32	9	5	31	25	25
13	12	33	7	6	22	27	29
14	14	34	12	7	30	27	26
15	8	35	8	8	29	25	28
16	9	36	8	9	28	29	34
17	7	37	12	10	32	28	32
18	8	38	9	11	26	25	28
19	10	39	6	12	22	27	29
20	12	40	11	13	26	28	34

Reference no: EM13975106

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