Refer to Table S6 L Factors for Camputing Comtral Chart Limissigma for this pro
ID: 463489 • Letter: R
Question
Refer to Table S6 L Factors for Camputing Comtral Chart Limissigma for this pro 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. The results were: Overall mean 57.75 lb.; Average range R = 1.54 lb. a) For the given sample size, the control limits for 3-sigma x chart are: Upper Control Limit (UCL) = 58.4030 lb. (roundyour response to three decimal places). Lower Control Limit LCL-Ib. (round your response to three decimal places).Explanation / Answer
LCL x bar Overall mean - (A2 * R bar) UCL x bar Overall mean + (A2 * R bar) Overall Mean, X double bar (lb) 57.75 R bar (lb) 1.54 A2 at n= 7 0.419 LCL x bar 57.105 UCL x bar 58.395