Find the lower control limit for future sample ranges

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Reference no: EM131743922

In the manufacture of disk drives, samples of size 15 were seen to have an overall average weight of 320 grams, and the sample ranges had an average of 1.7 grams. Find the lower control limit for future sample ranges. (Note: only the LOWER control limit - compute to three significant digits after the decimal point)

Reference no: EM131743922

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