In Chapter 8 simple regression and correlation were introduced and discussed. In simple regression the basic proposition is that an independent variable can be used to predict the value of some dependent variable (the ...

In business and economic series it is often true that a constant rate of growth prevails. This can happen with the sales of a company, GNP, consumption patterns, etc. For example, if the growth in GNP is 5% a year, it ...

In the preceding three chapters, several major classes of time-series forecasting methods were examined---exponential smoothing, decomposition, autoregressive/moving average, and filters. Various models within each ...