A liquid-dispensing machine has been designed to fill bottles with 1.0 liter of

Question

A liquid-dispensing machine has been designed to fill bottles with 1.0 liter of liquid. Is the process in control or out of control? Choose the correct answer belovw The standard deviation of the process is 0.2 liter. A control chart is shown. The chart has horizontal lines drawn at the mean, , at ± 2, and at ±36 Determine O A Out of co if the process shown is in control or out of control. Explain control, because two out of three consecutive points lie more than two standard deviations from the mean. Liquid Dispenser B. Out of control, because a point lies more than three standard deviations from the mean. OC. In control, because none of the three warning signals detected a change. D. Out of control, because there are nine consecutive points either above or below the mean. 10 11 Observation number

Explanation / Answer

This process is out of control because one point lies more than 3 standard deviations from the mean.

Option B is correct.

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