The monthly ambulatory visits shown in Table EX 2.1 occurred in
an outpatient clinic.
Month Visits
July 2,160
August 2,186
September 2,246
October 2,251
November 2,243
December 2,162
a. Predict visits for January using the naïve method.
b. Predict visits for January using a three-period moving average.
c. Predict visits for January using a four-period moving average.
