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# Operations and Supply Chain Management Study Set 5

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## Quiz 9 : Forecasting and Demand Planning

A tracking signal provides a method for monitoring a forecast by quantifying _____.
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Multiple Choice

A

In the Delphi method of judgmental forecasting,_____.
Free
Multiple Choice

D

Forecasting is a key component in customer relationship management.
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True False

True

Judgmental forecasting relies upon historical data in developing forecasts.
True False
_____ is based on the assumption that the future will be an extrapolation of the past.
Multiple Choice
In the context of causal forecasting models with multiple regression,an R-squared (R2)value of 0.70 means that 30 percent of the variation in the dependent variable is explained by the independent variable.
True False
Call center service training is a preproduction service that requires forecasts to create value in a value chain.
True False
Alex,a manager at Symbic Inc.,plotted the company's total energy costs of 1 billion dollars over the past 10 years on a chart.The chart suggested that the energy costs appear to be increasing in a fairly predictable linear fashion and that the energy costs are related to time by a linear function Yt =3+5t,where Yt represents the estimate of the energy cost in year t.Given the equation,which of the following is the value of the intercept of the straight line that best fits the time series?
Multiple Choice
_____ is a common approach to gather data for judgmental forecasts.
Multiple Choice
Forecast _____ is the difference between the observed value of the time series and the forecast.
Multiple Choice
A _____ is the underlying pattern of growth or decline in a time series.
Multiple Choice
In the context of data patterns in a time series,a(n)_____ variation is a one-time variation that is explainable.
Multiple Choice
In the context of data patterns in a time series,_____ are characterized by repeatable periods of ups and downs over short periods of time.
Multiple Choice
If the time series in an exponential smoothing model exhibits a negative trend,the _____.
Multiple Choice
Moving average (MA)methods work best when:
Multiple Choice
In the context of demand planning,customers' wants and needs define the customer benefit package.
True False