In developing a least squares trend line,the analyst should

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The best choice is to include several business cycles, fit the trendline between a peak and a trough or vice versa, and use as many data points as are practical. This will ensure that the trendline accurately represents the data and can be used for forecasting future trends. Including several business cycles provides a more accurate representation of the long-term trend, while fitting the trendline between a peak and a trough helps to identify the direction and strength of the trend. Using as many data points as are practical ensures that the trendline is based on a sufficient amount of data, without being influenced by outliers or other anomalies.

In Developing a Least Squares Trend Line,the Analyst Should