6.9. A router is used to cut locating notches on a printed circuit board. The vibration level at the surface of the board as it is cut is considered to be a major source of dimensional variation in the notches. Two factors are thought to influence vibration: bit size (A) and cutting speed (B). Two bit sizes (1/16 and 1/8 inch) and two speeds (40 and 90 rpm) are selected, and four boards are cut at each set of conditions shown below. The response variable is vibration measured as a resultant vector of three accelerometers (x, y, and z) on each test circuit board. (a) (b) (d) A B + + + Treatment Combination (1) a b ab I 18.2 27.2 15.9 41.0 Replicate II 18.9 24.0 14.5 43.9 Use the contrasts to compute the factor effects estimates. Use the contrasts to compute the sums of squares. Create a complete ANOVA table in a spreadsheet. Compute the residuals III IV 12.9 14.4 22.4 22.5 15.1 14.2 36.3 39.9

6.9. A router is used to cut locating notches on a printed circuit board. The vibration level at the surface of the board as it is cut is considered to be a major source of dimensional variation in the notches. Two factors are thought to influence vibration: bit size (A) and cutting speed (B). Two bit sizes (1/16 and 1/8 inch) and two speeds (40 and 90 rpm) are selected, and four boards are cut at each set of conditions shown below. The response variable is vibration measured as a resultant vector of three accelerometers (x, y, and z) on each test circuit board. (a) (b) (d) A B + + + Treatment Combination (1) a b ab I 18.2 27.2 15.9 41.0 Replicate II 18.9 24.0 14.5 43.9 Use the contrasts to compute the factor effects estimates. Use the contrasts to compute the sums of squares. Create a complete ANOVA table in a spreadsheet. Compute the residuals III IV 12.9 14.4 22.4 22.5 15.1 14.2 36.3 39.9

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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