For the data from Speciatronics, Ltd. (Prob04-09 in Ch04Data.xlsx on the Student Companion Site), the upper specification limit was USL = 5.25, and the lower specification limit was LSL = 1.75. Compute the process capability and discuss its meaning in managerial terms.

Process Capability Analysis
This spreadsheet is designed to handle up to 150 observations. Enter data ONLY in yellow-shaded cells.
Nominal specification				3.50		Average			3.5279			Cp	1.49
Upper tolerance limit				5.75		Standard deviation			0.5042			Cpl	1.51
Lower tolerance limit				1.25								Cpu	1.47
												Cpk	1.47
DATA	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1	3.42	3.15	4.27	4.75	3.77	3.72	3.97	4.21	3.74	2.92	3.64	3.42	4.29	3.42	4.18
2	2.76	4.04	3.76	3.38	3.91	3.88	3.18	3.04	4.08	3.68	2.76	4.28	2.33	3.30	4.24
3	3.44	3.50	3.26	4.16	4.52	3.58	3.06	2.67	3.22	3.29	3.21	4.00	2.80	3.25	3.15
4	2.79	3.92	3.29	2.94	3.41	3.15	3.20	3.37	3.91	3.23	3.98	3.55	3.28	4.09	3.70
5	3.93	3.29	3.53	2.80	4.57	3.61	3.00	3.41	3.15	3.20
6	3.31	4.54	3.16	3.97	3.47	3.40	3.74	3.29	3.21	4.00
7	3.77	2.97	3.75	2.77	4.01	4.41	3.36	4.24	3.31	4.54
8	3.46	3.68	2.96	2.84	3.52	3.16	2.85	3.53	3.82	2.80
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