Question: Find the expected demand for period No.7 By using Linear Trend Equation. Month X Demand (y) xy x2 1 120 2 135 3 140 4

Find the expected demand for period No.7

By using Linear Trend Equation.

Month

X

Demand (y)

xy

x2

1

120

2

135

3

140

4

147

5

155

6

160

7

Find Forecasting Error by using Tracking Signal

Period

Actual Demand

Forecasted Demand

E

lEl

1

130

120

2

125

120

3

100

120

4

155

120

5

95

120

6

117

120

7

162

120

8

122

120

9

131

120

10

107

120

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