Statistical Concepts, Theories and Analysis for Industrial Engineering 12-7. A study was performed on wear of a bearing y and itsrelationship to x = oil viscosity and x, = load. The follow-ing data were obtained.yX1X22931.685123015.581617222.010589143.0120111333.0135712540.01115(a) Fit a multiple linear regression model to these data.(b) Estimate o? and the standard errors of the regressioncoefficients.(c) Use the model to predict wear whenx = 25 and x, = 1000.(d) Fit a multiple linear regression model with an interactionterm to these data.(e) Estimate o and se(ß,) for this new model. How did thesequantities change. Does this tell you anything about thevalue of adding the interaction term to the model?(f) Use the model in (d) to predict when x = 25 and x21000. Compare this prediction with the predicted valuefrom part (b) above.

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Answered: 12-7. A study was performed on wear of…

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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[STATISTICS] How do you solve this? Data set: https://docs.google.com/document/d/18i0t_5Epc5KbGW5X659fLQID0zEOSIZIFMOIgHqEuos/edit?usp=sharing
Question 19 Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They all recently took a statistics exam and the exam scores were normally distributed in each of their classes. • Lucille's class had an average grade of 77 and the standard deviation was 4. Lucille earned 84.2 on the exam. Rocio's class had an average grade of 85 and the standard deviation was 3. Rocio earned 85.6 on the exam. Cristina's class had an average grade of 85 and the standard deviation was 5. Cristina earned 91.5 on the exam. Since some professors give harder exams than others, these students decided to use statistics to figure out who did the best on their exam. Use the Cumulative Z-Score Table to answer the following questions. Write your answers as a percent with two decimal places. Hint • Lucille's score places her above % of her class. % of her class. Rocio's score places her above % of her class. • Cristina's score places her above Which person has the highest…

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