National Scan Inc. sells radio frequency inventory tags. Monthly sales for a 7-mont… 1 answer below »

National Scan Inc. sells radio frequency inventory tags. Monthly sales for a 7-month period were as follows.
MonthSales/units
Feb18
Mar21
Apr15
May23
Jun20
Jul26
Aug23
Forecast September sales volume using:
Linear Trend – Yt ______________ thousands
Five month average – moving average – _________________ thousands
Exponential smooth with a smoothing constant equal to .15, assuming a March forecast of 16(000). Forecast _______________ thousands
The naïve approach _____________ thousands
A weighted average using .60 for August, 10 for July, and .30 for June.
Weighted average _____________ thousands.
Freight car loadings over an 18-week period at a busy port are as follows:
WeekNumberWeekNumberWeekNumber
1410746013540
2420848014550