Enrollment in a particular class for the last four semesters

Enrollment in a particular class for the last four semesters has been 123,120,137, and 142 (listed from oldest to most recent). Develop a forecast of enrollment next semester using exponential smoothng with alpha = 0.03. Assume that ans inital forecast for the first semester was 123 (so the forecast and the actual were the same).

Solution

123.89 is forecast for next semester