Taken from a? fertilizer-bag-filling machine

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Reference no: EM131708868

Thirty-five samples of size 7 each were taken from a? fertilizer-bag-filling machine. The results? were: Overall mean? = 57.75 ?lb.; Average range Upper R overbarR ?= 1.54 lb.

a) For the given sample? size, the control limits for ?3-sigma x overbarx chart ?are:

Upper Control Limit ?= ?(round your response to three decimal? places)

Lower Control Limit = ?(round your response to three decimal? places)

b) The control limits for the? 3-sigma R-chart? are:

Upper Control Limit = ?(round your response to three decimal? places)

?Lower Control Limit = ?(round your response to three decimal? places)

Reference no: EM131708868

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