When conducting a sensitivity analysis using multiple estimates, the three estimates are usually:a. probabilistic, authentic, most likelyb. deterministic, most likely, optimisticc. pessimistic, strategic, realisticd. optimistic, pessimistic, most likely
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When conducting a sensitivity analysis using multiple estimates, the three estimates are usually:
a. probabilistic, authentic, most likely
b. deterministic, most likely, optimistic
c. pessimistic, strategic, realistic
d. optimistic, pessimistic, most likely
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- The Baker Company wants to develop a budget to predict how overhead costs vary with activity levels. Management is trying to decide whether direct labor hours (DLH) or units produced is the better measure of activity for the firm. Monthly data for the preceding 24 months appear in the file P13_40.xlsx. Use regression analysis to determine which measure, DLH or Units (or both), should be used for the budget. How would the regression equation be used to obtain the budget for the firms overhead costs?Because tests for the significance of coefficients in regression use two-tail hypothesis tests, which are less powerful than one-tail tests, it might be a good idea to A. This is a moot point because coefficient significance is not really important B. Whine and complain about it to your work colleagues C. Live with a less powerful test for significance D. Cut the p-value in half, or compare it to alpha times 2 to increase the test's power E. All of the above F. None of the aboveBusiness analytics concepts a) Data used in business analytics need to be reliable and valid. Explain your opinion on the statement and provide practical examples to support your answer. b) What are the similarities and differences between correlation analysis and regression analysis? c) What types of measurements can be used to measure the central tendency of the data? Please compare the advantages and disadvantages between these measurements.
- An information will be having predictive value if it can help to _____________. a. Predict the present b. Predict the environment c. Predict the past d. Predict the future1.Which of the following most accurately describes the adaptive-expectations hypothesis? A.The national debt owed to domestic and foreign investors does not include bonds held by agencies of the federal government or the Federal Reserve. B.Economic decision-makers weigh all available evidence when they form their expectations about future economic events. C.Economic decision-makers base their future expectations on actual outcomes observed during recent periods. D.The indebtedness of the federal government reflects the cumulative impact of budget deficits and surpluses. 2.The index of leading economic indicators is an index composed of economic variables that tend to turn( up or down) prior to the beginning of a recession and turn (up/or down) prior to the beginning of a business expansion. 3.Are the implications of the rational and adaptive expectations hypotheses different in the short-run? A.No, because under both theories people will begin to anticipate…Suppose a social psychologist sets out to see whether having children is related to relationship longevity. He decides to measure relationship satisfaction in a group of couples with children and a group of childless couples. He chooses the Marital Satisfaction Inventory because it refers to “partner” and “relationship” rather than “spouse” and “marriage,” which makes it useful for research with both traditional and nontraditional couples. Higher scores on the Marital Satisfaction Inventory indicate greater relationship satisfaction. The psychologist administers the Marital Satisfaction Inventory to 58 couples—30 are couples with children and 28 are childless couples. He wants to calculate the correlation between a couple’s relationship satisfaction and whether they have children. Which of the following types of correlations would be most appropriate for the psychologist to use?
- In light of the fact that research always contains the possibility of error, we have to be careful not to present research results as causal relationships when they are only correlations. And yet, sometimes correlation is used. For example, in car insurance, male drivers are correlated with more accidents, so insurance companies charge them more. It would be impossible to actually test this for causation. Given the above, how do we balance this possibility of error with the need to have statistical results to inform our business decisions?Deviational variables: 1. are positive for underachievement only. 2. are negative. 3. are positive for over-achievement only. 4. are added to constraints to indicate acceptable departures from the target values of their corresponding goals.5) Which three of the statements are advantages of using sensitivity analysis? A) It identifies the relationships between various unpredictable variables. B) It can be used when making contingency plans. C) It may lead to an indication of where further investigation might be worthwhile. D) It provides information for decision making.
- what do the standardized regression weights or coefficients tell you about the ability of the predictors to predict the dependent variable?You may need to use the appropriate technology to answer this question. Management Decision Systems (MDS) is a consulting company that specializes in the development of decision support systems. MDS has a four-person team working on a current project with a small company to set up a system that scrapes data from a collection of websites and then automatically generates a report for management on a daily basis. Time (Weeks) Activity Description ImmediatePredecessor Optimistic Most Probable Pessimistic A Report generation 2 9 13 B Web scraping 6 10 12 C Testing A, B 1 1 1 (a) Construct the project network. (Submit a file with a maximum size of 1 MB.) This answer has not been graded yet. (b) Based solely on the critical path, estimate the probability that the project will be complete within 12 weeks. (Round your answer to four decimal places.) (c) Using all paths through the project network, estimate the probability that the project will be…You may need to use the appropriate technology to answer this question. Management Decision Systems (MDS) is a consulting company that specializes in the development of decision support systems. MDS has a four-person team working on a current project with a small company to set up a system that scrapes data from a collection of websites and then automatically generates a report for management on a daily basis. Time (Weeks) Activity Description ImmediatePredecessor Optimistic Most Probable Pessimistic A Report generation 2 9 13 B Web scraping 6 10 12 C Testing A, B 1 1 1 (a) Construct the project network. (Submit a file with a maximum size of 1 MB.) (b) Based solely on the critical path, estimate the probability that the project will be complete within 12 weeks. (Round your answer to four decimal places.) It is not 0.9099 (c) Using all paths through the project network, estimate the probability that the project will be complete within 12 weeks. (Round…