Calculate C, using the following data of 5 samples with three observations each. The lower specification limit is 50 and the upper specification limit is 90. The target value from the customer is 70. Sample Observation 1 Observation 2 Observation 3 60 65 70 67 75 60 3 67 72 70 4 59 69 71 65 68 73 O 1.13 O 0.67 O 0.56 O 1.98 2. 5.

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