final exam.business statistics

final exam.business statistics - Quick Link Week 11 Course...

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Quick Link Week 11 Course Business Statistics Test Week 11 Final Exam Started 9/2/16 9:03 PM Submitted 9/2/16 9:48 PM Due Date 9/17/16 6:00 PM Status Completed Attempt Score 100 out of 100 points Time Elapsed 45 minutes out of 3 hours Instructions This final exam consists of 25 multiple choice questions and covers the material in Chapters 1 through 8. Results Displayed Submitted Answers, Correct Answers, Feedback Question 1 4 out of 4 points Process improvement activities typically include: Selected Answer: All of the above Correct Answer: All of the above Question 2 4 out of 4 points If you had the following residual plots what would be your concerns regarding the adequacy of the model associated with these residuals? Selected Answer: Residuals plots have non-random patterns suggesting that the model is not adequate. Correct Answer: Residuals plots have non-random patterns suggesting that the model is not adequate. Question 3 4 out of 4 points George Box tells us “all models are wrong but some are useful”. By this comment he means:
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Selected Answer: B and C Correct Answer: B and C Question 4 4 out of 4 points Results of regression analysis are often abused in the following ways: Selected Answer: All of the above Correct Answer: All of the above Question 5 4 out of 4 points Models based on subject matter fundamentals (theory) are generally better than statistical models for: Selected Answer: A and B Correct Answer: A and B Question 6 4 out of 4 points An Adjusted R-square value is a correlation coefficient that has been modified to account for: Selected Answer: Number of predictor variables in the model Correct Answer: Number of predictor variables in the model Question 7 4 out of 4 points Which type of variation was critical to resolving the realized revenue case study?
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