Across
- 2. a linear regression model with more than one independent variable.
- 4. is a method for building a statistical model that defines a relationship between a single dependent variable and one or more independent variables, all of which are numerical.
- 7. consists of forecasting by expert opinion by gathering judgments and opinions of key personnel based on their experience and knowledge of the situation.
- 8. is a set of observations measured at successive points in time or over successive periods of time.
- 10. the tendency of forecasts to consistently be larger or smaller than the actual values of the time series.
- 13. is the underlying pattern of growth or decline in a time series.
- 14. are characterized by repeatable periods of ups and downs over short periods of time.
- 16. the length of time on which a forecast is based.
- 17. asking those who are close to the end consumer, such as salespeople, about the customers’ purchasing plans.
- 18. an average of the most recent “k” observations in a time series.
- 19. the process of projecting the values of one or more variables into the future.
Down
- 1. is a one time variation that is explainable.
- 3. are regular patterns in a data series that take place over long periods of time.
- 5. a forecasting technique that uses a weighted average of past time-series values to forecast the value of the time series in the next period.
- 6. relies upon opinions and expertise of people in developing forecasts.
- 9. is based on the assumption that the future will be an extrapolation of the past.
- 11. the time-period size used in the MRP explosion process and usually are one week in length.
- 12. sometimes called noise) is the unexplained deviation of a time series from a predictable pattern such as a trend, seasonal, or cyclical pattern.
- 15. is the difference between the observed value of the time series and the forecast, or At - Ft.