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Author Question: An x-bar control chart was examined and no data points fell outside of the limits. Can this process ... (Read 28 times)

saliriagwu

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on: Dec 3, 2019

Question 1

Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, 11. Find the standard deviation of the sampling distribution. (Hint- Use p-bar formula)
◦ .0273
◦ 8.1
◦ .0863
◦ There is not enough information.
◦ .081

Question 2

An x-bar control chart was examined and no data points fell outside of the limits. Can this process be considered in control?
◦ No, the number of samples must be known.
◦ Yes.
◦ Yes, there is not enough data to determine otherwise.
◦ No, there could be a pattern to the points, the R-chart must be checked.
◦ Yes, it is unlikely that there is a pattern in these points.
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Marked as best answer by saliriagwu on Dec 3, 2019

lin77x

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Reply #1 on: Dec 3, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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saliriagwu

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Reply 2 on: Dec 3, 2019
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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