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# When a forecaster uses multiplicative decomposition

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Unformatted text preview: ely or negatively autocorrelated AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: Time series regression 24. If the errors produced by a forecasting method for 3 observations are + 3, + 3 and - 3, then what is the mean absolute deviation? A. 9 B. 0 C. 3 D. -3 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 6 Topic: Forecasting 25. If the errors produced by a forecasting method for 3 observations are + 3, + 3 and - 3, then what is the mean squared error? A. 9 B. 0 C. 3 D. -3 E. 2 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 6 Topic: Forecasting 1-1585 Chapter 01 - An Introduction to Business Statistics 26. If the errors produced by a forecasting method for 3 observations are -1, -2 and -6, then what is the mean squared error (deviation)? A. 9 B. -9 C. 3 D. 13.67 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 6 Topic: Forecasting 27. All of the following are forecasting methods except A. Holt-Winters' double exponential smoothing B. Box and Jenkins C. Time series regression D. MAD autocorrelation AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 2 Topic: Forecasting 28. When a forecaster uses the _________________ method she or he assumes that the time series components are changing quickly over time. A. Time series regression B. Simple exponential smoothing C. Box and Jenkins D. Multiplicative decomposition AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 2 Topic: Time series regression 1-1586 Chapter 01 - An Introduction to Business Statistics 29. When a forecaster uses the ______________ method she or he assumes that the time series components are changing slowly over time. A. Time series regression B. Exponential smoothing C. Box and Jenkins D. Multiplicative decomposition AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 5 Topic: Exponential Smoothing 30. A restaurant has been experiencing higher sales during the weekends of compared to the weekdays. Daily restaurant sales patterns for this restaurant over a week are an example of _________ component of time series. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 1 Topic: Time series analysis 31. The ________ component of a time series measures the fluctuations in a time series due to economic conditions of prosperity and recession with a duration of approximately 2 years or longer. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Time series analysis 1-1587 Chapter 01 - An Introduction to Business Statistics 32. The _______ component of time series consists of erratic and unsystematic fluctuations in a time series data. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Time series analysis 33. The _______ component of time series reflects the long-run decline or growth in a time series. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Time series analysis 34. _________ component of time series refers to the erratic time-series movement that follow no recognizable or regular pattern. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Time series analysis 1-1588 Chapter 01 - An Introduction to Business Statistics 35. In general, the number of dummy variables used to model constant seasonal variation is equal to the number of A. seasons B. seasons minus 1 C. seasons plus 1 D. seasons minus 2 E. seasons divided by two AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: Time series regression 36. When the moving average method is used to estimate the seasonal factors with quarterly sales data, a ______ period moving average is used. A. 2 B. 3 C. 4 D. 5 E. 8 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 4 Topic: Moving averages 37. A sequence of values of some variable or composite of variables taken at successive, uninterrupted time periods, is called a A. Least squares (linear) trend line B. Moving averages C. Cyclical component D. Time series E. Seasonal factor AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Learning Objective: 1 Topic: Time series analysis 1-1589 Chapter 01 - An Introduction to Business Statistics 38. Those fluctuations that are associated with climate, holidays and related activities are referred to as ___________ variations. A. Trend B. Seasonal C. Cyclical D. Irregular AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Learning Objective: 1 Topic: Time series a...
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## This document was uploaded on 01/20/2014.

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