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6.41 A wallpaper manufacturer performs checks on the quality of the print on rolls of wall- paper by sampling rolls and examining them for such printing flaws as discoloration, spots, lines, creases, and imperfect color matching. Rolls are all 56 feet long but come in different widths. Presented on page 278 are the sizes of rolls in square feet and the numbers of imperfections found for each of 25 rolls sampled. Statistical Process Cou Number of Roll Roll Number of Number Size Imperfections Number Size Imperfections 123456TBODIES 100 64 14 100 112 9 15 126 16 126 100 17 112 112 8 100 9 18 100 126 33 19 126 100 9 20 112 126 15 21 112 9 112 14 22 112 23 126 10 100 24 112 11 100 29 25 126 112 17 SANATATE 16 13 4 11 8 23 126 12 WALLPAR (a) Construct a control chart for these data. (b) Is the printing process in a state of statistical control? Why? (c) If the process is not in a state of control, eliminate out-of-control points and recalculate the trial control limits

6.41 A wallpaper manufacturer performs checks on the quality of the print on rolls of wall- paper by sampling rolls and examining them for such printing flaws as discoloration, spots, lines, creases, and imperfect color matching. Rolls are all 56 feet long but come in different widths. Presented on page 278 are the sizes of rolls in square feet and the numbers of imperfections found for each of 25 rolls sampled. Statistical Process Cou Number of Roll Roll Number of Number Size Imperfections Number Size Imperfections 123456TBODIES 100 64 14 100 112 9 15 126 16 126 100 17 112 112 8 100 9 18 100 126 33 19 126 100 9 20 112 126 15 21 112 9 112 14 22 112 23 126 10 100 24 112 11 100 29 25 126 112 17 SANATATE 16 13 4 11 8 23 126 12 WALLPAR (a) Construct a control chart for these data. (b) Is the printing process in a state of statistical control? Why? (c) If the process is not in a state of control, eliminate out-of-control points and recalculate the trial control limits

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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641 A wallpaper manufacturer performs checks on the quality of the print on rol of wal- paper by sampling rolls and examining them for such printing flaws as discoloration, spots, lines, creases, and imperfect color matching. Rolls are all 56 feet long but come in different widths. Presented on page 278 are the sizes of rolls in square feet and the numbers of imperfections found for each of 25 roll sampled. Statistical Process COmuvI Roll Number of Imperfections Number of Roll Number Size Size Imperfections Number 14 100 7. 100 112 6. 15 126 16 126 112 14 16 100 112 100 10 13 17 6. 18 100 4 33 19 126 126 100 126 112 11 8. 10 112 112 20 15 14 22 112 23 126 7. 6. 11 100 100 112 126 24 112 126 29 25 17 12 17 WALAR 13 (a) Construct a control chart for these data. (b) Is the printing process in a state of statistical control? Why? (c) If the process is not in a state of control, eliminate out-of-control points and recalculate the trial control limits. 123456189eH
Transcribed Image Text:641 A wallpaper manufacturer performs checks on the quality of the print on rol of wal- paper by sampling rolls and examining them for such printing flaws as discoloration, spots, lines, creases, and imperfect color matching. Rolls are all 56 feet long but come in different widths. Presented on page 278 are the sizes of rolls in square feet and the numbers of imperfections found for each of 25 roll sampled. Statistical Process COmuvI Roll Number of Imperfections Number of Roll Number Size Size Imperfections Number 14 100 7. 100 112 6. 15 126 16 126 112 14 16 100 112 100 10 13 17 6. 18 100 4 33 19 126 126 100 126 112 11 8. 10 112 112 20 15 14 22 112 23 126 7. 6. 11 100 100 112 126 24 112 126 29 25 17 12 17 WALAR 13 (a) Construct a control chart for these data. (b) Is the printing process in a state of statistical control? Why? (c) If the process is not in a state of control, eliminate out-of-control points and recalculate the trial control limits. 123456189eH
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