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Express Lane Plus
Posts: 485
Rep: 2 0
4 weeks ago
Boxes of​ Honey-Nut Oatmeal are produced to contain
16.0
16.0 ​ounces, with a standard deviation of
0.10
0.10 ounce.  For a sample size of
36
36​, the ​3-sigma
x overbar
x chart control limits​ are
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wrote...
Educator
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Posts: 24974
4 weeks ago
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You need to use the formula:

\(UCL_{\overline{x}}=\overline{\overline{x}}+3\frac{\sigma }{\sqrt{n}}\)

where UCL and LCL are the upper and lower control limits, n is the subgroup size, and σ is the estimated standard deviation of the individual values.

\(UCL_{\overline{x}}=16.0+3\frac{0.10}{\sqrt{36}}\)

\(16.05\)
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wrote...
Express Lane Plus
3 weeks ago
You need to use the formula: \(UCL_{\overline{x}}=\overline{\overline{x}}+3\frac{\sigma }{\sqrt{n}}\) where UCL and LCL are the upper and lower control limits, n is the subgroup size, and σ is the estimated standard deviation of the individual values. \(UCL_{\overline{x}}=16.0+3\frac{0.10}{\sqrt{36}}\) \(16.05\)
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Educator
3 weeks ago
Are we good here? Any further questions?
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