b) Lower Control Limit -x = __

The control limits for 3 sigma R chart are:

c) Upper Control Limit (UCLr) = __ lb. (round to nearest three decimal places)

d) Lower Control Limit (UCLr) = ___ lb

Please help, and show your work.

Refer to Table 86.1 - 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 = 57.75 lb.: Average range = 1.54 lb. a) For the given sample size, the control limits for 3-sigma x chart are: - X X Upper Control Limit (UCL) = b. (round your response to three decimal places). Definition ) = Sample Size, n Mean Factor, A2 Upper Range, D 2 3 4 5 1.880 1.023 0.729 0.577 0.483 0.419 0.373 0.337 0.308 0.266 6 7 8 Lower Range Dj D 0 0 0 0 0 0.076 0.136 0.184 0.223 0.284 3.268 2.574 2.282 204 2.115 2.004 1.924 1.864 1.816 1.777 1.716 9 10 12