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Mathematics, 09.12.2019 23:31 hdhtvthjr

In setting up a control chart for a certain process, sigma is found to be 11 units. repeated measurements of the same part, using the same technique on which the chart is based, show a standard error of measurement of 5 units. the best estimate of the true standard deviation of the process is nearest to
a. 6 units
b. 10 units
c. 11 units
d. 12 units

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