Homework: HW5 Save Score: 5.7 of 24 pts 10f 5 (5 complete) Hw score: 62.9%, 62.9

Question

Homework: HW5 Save Score: 5.7 of 24 pts 10f 5 (5 complete) Hw score: 62.9%, 62.9 of 100 pts Problem 6s.3 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-filing machine. The results were: Overall mean . 60.75 lb : Average range R a) For the given sample size, the control limits for 3-sigma x chart are: Question Help * 1.541b. Upper Control Limit (UCL)-61.395 b. (round your response to three decimal places) Lower Control Limit LCL) 60.105 lb. (round your response to three decimal places). b) The control limits for the 3-sigma R-chart are: Upper Control Limit (UCLR 116.883 b. (round your response to three decimal places)

Explanation / Answer

Upper Control Limit of x-bar = Mean of x-bar + A2* R-bar = 60.75 + 1.277*1.54 =

Lower Control limit of x-bar = Mean of x-bar - A2*R-bar = 60.75 - 1.277*1.54

for sample size seven tabulated value of A2=1.277

Upper Control Limit of R chart = D4*R-bar       Value of D4=1.924

Upper Control Limit of x-bar = Mean of x-bar + A2* R-bar = 60.75 + 1.277*1.54 = 62.71658 Lower Control limit of x-bar = Mean of x-bar - A2*R-bar = 60.75 - 1.277*1.54 = 58.78342 for sample size seven tabulated value of A2=1.277 Upper Control Limit of R chart = D4*R-bar=1.54*1.924=2.96296      as Value of D4=1.924 for sample size of 7.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.