Question

if you have mini tab and can show how to do part b that would be great, if not no worries

Problem 2 The thickness of a printed circuit board is an important quality characteristic. Data on board thickness (in inches) are given in Table 5E 1 The table has been uploaded to Folio) for 25 subgroups of three boards each. (a) [Pencil version] Set up an R chart by computing the initial set of seven lines (USL, UWL UOL, CL, LOL LWL, and LCL) Is the process variability in statistical control? Use the 9 rules. Note: You are not asked to revise the R chart. (b) Minitab version] Repeat part (a) using Minitab and shor your Minitab output. (c) [Pencil version] Estimate the process standard deviation (o) Iabic Prinied Circuit Beard Thickness for Exercise 5.20Coninned Sample Number 0.0629 0.0 0 0630 0.0631 0 Sample Number 14 15 00150.040 0.0631 0.0632 0.0627 0.0630 0.0640 0.0619 0.0644 2 00622 0.0628 0.063 0.0633 0.0631 0.0616 0.0623 0.0631 17 18 19 20 21 00634 0.06300.0631 0.0619 0.0628 00630 0.0613 U.062900634 0.0626 0.0629 0.0630 0.0530 0.0636 0.0631 0.064000635 0.0629 0.0628 0.0625 00616 (1.0615 0.0630 0.0632 0.0630 0.0635 0.0523 0.0629 0.0630 0.0628 0.0627 0.0623 0.0639 0.0625 0.0622 0.0639 0.0625 0.0619 0.0626 0.0631 nañ3o 0.0680 0.0531 0063 0.631 0063 10 12 12 13 23 24 25 0.0629 0.0635 0.0635 0.0623 0.0635 0.0638 0.0443 a.0630 0.0630

Answer 1

b) 3ontve R.chart imt ChaY (2.51u)Co0936) Wh e Duis a Constant based up on n

Xbar-R Chart of Board1,., Board3 .060 UO 0.06391 e 0.0635 .0620 2410 2 14 Sample 20 22 24 .0024 0,0018 .0012 0006 .0000 UCL-0.00240 24610 12 141618 20 222 Sample

The process Sfandutd deviationR anawta deviation c-- I dl klhetc dh s a Consfont takes fom abs fat n a O 000936 I.693 CO 06055a9 and the pvocess Cababilb 6 A