Question: A process when in control produces a normally distributed output with a mean of 200 and a mean range of 25. 10 samples of 100

A process when in control produces a normally

A process when in control produces a normally distributed output with a mean of 200 and a mean range of 25. 10 samples of 100 each yield the following means and ranges. Period 1 2 3 4 5 6 7 8 9 10 X-bar 200 202 201 199 203 203 198 201 202 201 Range 29 28 27 28 29 27 28 29 27 28 Which of the following is the most true statement concerning the variation of the process? Select one alternative: The probability of this pattern if the process were in control is very very low, therefore, we infer that the process is out of control. O The variation is in control. The probability of this pattern if the process were in control is very high, therefore, we infer the process is in control. O The variation is out of control. O A part of this process is in control whereas a part of it is not in control

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