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

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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