Question: Refer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Thirty-five samples of size 7 each were taken from

Refer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem.
Thirty-five samples of size 7 each were taken from a fertilizer-bag-filling machine at Panos Kouvelis Lifelong Lawn Ltd. The results were: Overall mean = 57.75lb.; Average range R=1.64lb.
a) For the given sample size, the control limits for 3-sigma x chart are:
Upper Control Limit-x
=
lb. (round your response to three decimal places).
Lower Control Limit-x
=
lb. (round your response to three decimal places).
b) The control limits for the 3-sigma R-chart are:
Upper Control Limit (UCLr)
=
lb. (round your response to three decimal places).
Lower Control Limit (LCLr)
=
lb. (round your response to three decimal places).
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