National Scan, Inc., sells radio frequency inventory tags.
Monthly sales for a seven-month period were as follows:
b. Forecast September sales volume using each of the
(1) A linear trend equation.(Round your intermediate
calculations and final answer to 2 decimal places.)
Yt _ thousands
(2) A five-month moving average. (Round your answer to 2
Moving average _ thousands
(3) Exponential smoothing with a smoothing constant equal to
.10, assuming a March forecast of 15(000). (Round your
intermediate forecast values and final answer to 2 decimal
Forecast _ thousands
(4) The naive approach.
Naive approach _ thousands
(5) A weighted average using .55 for August, .20 for July, and
.25 for June. (Round your answer to 2 decimal
Weighted average _ thousands
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