The upper and lower limits for the diameter for high tension cable made by Wally's Wire are UCL 40 cm and LCL 39 cm Wally took 9 consecutive samples with the following average diameters (39 1 cm, 39 2 cm, 39 3 cm, 39 4 cm, 39 5 cm, 39 6 cm, 39 7 cm, 39 8 cm, 39 9cm) Is this process in control Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Sample 7 Sample 8 Sample 9 39 1 cm 39 2 cm 39 3 cm 39 4 cm 39 5 cm 39 6 cm 39 7 cm 39 8 cm 39 9 cm Yes, no diameters exceeded the control limit No, some diameters exceeded the control limits No, there is a distinguishable pattern to the samples No, the range is not in control There is not enough information to make a decision

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Question: The upper and lower limits for the diameter for high tension cable made by Wally's Wire are UCL = 40 cm and LCL = 39

The upper and lower limits for the diameter for high tension cable made by Wally's Wire are UCL = 40 cm and LCL = 39 cm. Wally took 9 consecutive samples with the following average diameters (39.1 cm, 39.2 cm, 39.3 cm, 39.4 cm, 39.5 cm, 39.6 cm, 39.7 cm, 39.8 cm, 39.9cm). Is this process in control?

Sample 1	Sample 2	Sample 3	Sample 4	Sample 5	Sample 6	Sample 7	Sample 8	Sample 9
39.1 cm	39.2 cm	39.3 cm	39.4 cm	39.5 cm	39.6 cm	39.7 cm	39.8 cm	39.9 cm

		Yes, no diameters exceeded the control limit.
		No, some diameters exceeded the control limits.
		No, there is a distinguishable pattern to the samples.
		No, the range is not in control.
		There is not enough information to make a decision.

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