At a smelter the CrO3 content of a chromium ore reference sample is analysed every day Over a period of 26 months this reference samples was analysed 780 times and has a population median of 44 6, average of 45 1 and standard deviation of 0 9 CrO3 Determine the upper (UCL) and lower control limit ...

Answer To determine the upper control limit UCL and lower control limit LCL for a quality control c ...

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At a smelter the CrO3 content of a chromium ore reference sample is analysed every day. Over a period of 26

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Statistics Informed Decisions Using Data

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