Question 16 (0.5 points) A co-op student created a spreadsheet model for their employer that has enabled the co-op student to provide valuable business insights to management. After the co-op student returned to classes, the spreadsheet model was no longer used at the organization. This is an example of a spreadsheet model that is a Technical success & Organizational failure Technical success & Organizational success Technical failure & Organizational failure Technical failure & Organizational success Question 17 (0.5 points) Let X1, X2 and X3 represent binary decision variables where a value of variable Xi equal to 1 represents the performance of project i. Which statement includes the constraint that one has to perform project 3 when project 1 or project 2 (or both) is performed? OX1 + X2 X3 Ox1 + x2 = 2X3 Ox1 X3 AND X2 X3 Two of the above are correct Question 18 (0.5 points) Which of the following forecasting models is a quantitative forecasting technique? Time series Market research Life cycle curves Delphi method Question 19 (0.5 points) Sidra owns and operates a custom framing business, and uses only the best quality cuts of oak and cherry lumber. Customers are so impressed with the quality of the custom frames (customer feedback has included "they're real, and they are spectacular"), that many become repeat customers. Sidra would like to estimate how many wooden oak frames she can expect to sell each month in the next year. She has kept detailed sales records in her computer for the last five years and she needs to develop this forecast over the weekend. What is the most sensible forecasting method for her assuming that the conditions in the next year will be similar to the past five years? Use an appropriate qualitative method Use Use a time series method Use a causal method ir intuition