The relative size of errors is shown by: Residuals O MSE O Bias O MAD O MAPE
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- Figure 1 shows the general discriminatory test for health status prediction. "Perfect test cut-off True negative; TN (specificity) True positive; TP (sensitivity) False negative (FN) False positive (FP) Healthy Sick (a) Test cut-off Moving cut-off to left reduces false negatives (higher specificity) at cost of reduced sensitivity Moving cut-off to right reduces false positives (higher sensitivity) at cost of reduced specificity TN TP FN FP Healthy Sick (b) Figure 1. The Discriminatory Test with (a) A Good Discrimination Test Cut-off, and (b) A Bad Discrimination Test Cut-off i. What is your next action, if you obtain a perfect discriminatory test result (where both false negative and false positive rate are near zero) during model training? Justify your action. ii. In which phase of machine learning methodology do you move the test cut-off point as shown in Figure 1(b)? Justify why you should do that.Define the following:. 1. Leniency Error2. Central Tendency Error3. Strictness Error4. Halo Error5. Proximity Error6. Contrast Error7. Recency Effect8. assignment variable at which the treatment status does NOT change In Regression Discontinuity framework, the cutoff is defined as the level of the True False 9. What regression equation do we use for regression discontinuity framework? a) Y = Bo + B1 T + B2Xu+ Ei b) Y = Bo + B,T+ B2C + ei c) Y, = Bo + B, T+ B2 (Xi-C) + ei d) Y, = Bo + B1T + B2 (Xu + C) + € 10. Regression Discontinuity Design accomplices apples-to-apples comparison by comparing individuals as far from the cutoff as possible. True False
- Which of the following is not a lead indicator used in balanced scorecards? Multiple Choice Quality Customer loyalty Innovation and growth Employee capabilities profit marginWrite examples of different types of probability and non-probability sampling? Give practical examples of the application in real life situation.Bill Kime's bowling ball factory makes bowling balls of adult size and weight only. The standard deviation in the weight of a bowling ball produced at the factory is known to be 0.39 pounds. Each day for 24 days, the average weight, in pounds, of 9 of the bowling balls produced that day has been assessed as follows Day 1 2 3 4 5 6 Average (lb) 9.9 9.9 10.1 10.1 99 99 Day 7 8 9 10 11 12 Average (lb) Day Average (b) 13 14 15 16 17 18 10.1 10.0 10.0 10.1 10.1 10.0 9.9 10.1 10.1 10.0 10.1 10.1 Day 19 20 21 22 23 24 Average (lb) 99 10.0 10.1 9.9 10.0 10.0 a) Establish a control chart for monitoring the average weights of the bowling balls in which the upper and lower control limits are each two standard deviations from the mean What are the values of the control limits? Upper Control Limit (UCL)=b (Round your response to two decimal places)
- A technique for the study of interrelationships among variables, usually for the purposes of data reduction and the discovery of underlying constructs or latent dimensions is known as: a. Factor Analysis b. Structural Model Analysis c. Multiple linear regression d. Reliability AnalysisWhat are common mistakes made in the problem definition stage of problem-solving?COQ Histogram; Spreadsheet Application Genova Company classifies its costs of quality intofour categories. The costs of quality (COQ) as a percentage of cost of goods sold for the last threeyears are as follows:[LO 17-1, 17-5][LO 17-5]2019 2020 2021Prevention costs 1.00% 4.00% 2.00%Appraisal costs 3.00 2.50 1.50Internal failure costs 27.00 23.00 14.00External failure costs 31.00 18.00 12.00Required1. Use a spreadsheet to prepare a histogram that shows the costs of quality (COQ) trends as a percentageof cost of goods sold.2. Comment on the trends in cost of quality (COQ) over the 3-year period from 2019 to 2021.3. Based on the observed trends, what total cost of quality can the company expect in 2022? Explain.