The Pull Strength Of A Wire Bond Is An Important Characteristic The Following Data Give Information On Pull Strength Y 1 (144.05 KiB) Viewed 35 times
The pull strength of a wire bond is an important characteristic. The following data give information on pull strength y, die height sl, post height x2, loop height x3, wire length x4, bond width on the die x5, and bond width on the post x6. (From Myers, Montgomery, and Anderson-Cook, 2009.) die bond width on the post 2.3 1.8 cic pull strength 8.0 8.3 8.5 8.8 9.0 9.3 9.3 9.5 9.8 10.0 10.3 10.5 10.8 11.0 11.3 11.5 11.8 12.3 12.5 olen olomon on o height 52 52 5.8 6.4 5.8 5.2 5.6 6.0 5.2 5.8 6.4 6.0 6.2 6.2 6.2 5.6 uuuaaaaauuuuuuuu coloro cicciolo post height 19.6 19.8 19.6 19.4 18.6 18.8 20.4 19.0 20.8 19.9 18.0 20.6 20.2 20.2 19.2 17.0 19.8 18.8 18.6 loop height 29.6 32.4 31.0 32.4 28.6 30.6 32.4 32.6 322 31.8 32.6 33.4 31.8 32.4 31.4 33.2 35.4 34.0 342 wire length 94.9 89.7 96.2 95.6 86.5 84.5 88.8 85.7 93.6 86.0 87.1 93.1 83.4 94.5 83.4 85.2 84.1 86.9 83.0 bond width on the die 2.1 2.1 2.0 22 2.0 2.1 22 2.1 2.3 2.1 2.0 2.1 2.2 21 1.9 2.1 2.0 2.1 1.9 cicicicicicicicilci 2.0 2.1 1.8 2.1 1.9 1.9 2.1 1.8 1.6 2.1 2.1 1.9 1.8 2.1 6.0 1.8 I! 5.8 5.6 1.8 2.0 Part 4: i. Fit a regression model using all independent variables. il. Test for significance of regression. What conclusions can you draw? Based on t-tests, do you need all regressor variables in the model? Explain. IV. Are the model assumptions satisfied? Perfom a correlation analysis and comment on the results. 111.
Part B: Use stepwise regression, provide the results of the final model. Part C: Use the criteria Cp. S. R. and adjusted R to find the "best" model from among all subset models. Recommend the best subset model(s). Provide the results from your analysis.
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