Assume the thickness X of washers to be normal with mean 2.75 mm and variance 0.00024 mm
Question:
Assume the thickness X of washers to be normal with mean 2.75 mm and variance 0.00024 mm2. Set up a control chart for μ and graph the means of the five samples (2.74, 2.76), (2.74, 2.74), (2.79, 2.81), (2.78, 2.76), (2.71, 2.75) on the chart.
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To set up a control chart for the mean thickness of washers we first need to calculate the control l...View the full answer
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