Question: FORECASTING

(a) The number of cans of soft drinks sold in a machine each week is recorded below. Develop forecasts using a three period moving average.

338, 219, 278, 265, 314, 323, 299, 259, 287, 302

(b) The number of new contributors to a public radio station’s annual fund drive over the last ten years is

63, 58, 61, 72, 98, 103, 121, 147, 163, 198

Develop a trend equation for this information, and use it to predict next year’s number of new contributors.