Questions from General Business Management

Q: How is the impact of seasonality removed from a time series?

How is the impact of seasonality removed from a time series?

Q: In using the decomposition method, the forecast based on trend is

In using the decomposition method, the forecast based on trend is found using the trend line. How is the seasonal index used to adjust this forecast based on trend?

Q: Explain when a CMA (rather than an overall average) should

Explain when a CMA (rather than an overall average) should be used in computing a seasonal index. Explain why this is necessary.

Q: What is the difference between a causal model and a time-

What is the difference between a causal model and a time-series model?

Q: What is a qualitative forecasting model, and when is it appropriate

What is a qualitative forecasting model, and when is it appropriate?

Q: What are some of the problems and drawbacks of the moving average

What are some of the problems and drawbacks of the moving average forecasting model?

Q: What effect does the value of the smoothing constant have on the

What effect does the value of the smoothing constant have on the weight given to the past forecast and the past observed value?

Q: Describe briefly the Delphi technique.

Describe briefly the Delphi technique.

Q: What is MAD, and why is it important in the selection

What is MAD, and why is it important in the selection and use of forecasting models?

Q: Discuss how the coefficient of determination and the coefficient of correlation are

Discuss how the coefficient of determination and the coefficient of correlation are related and how they are used in regression analysis.