{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter 3 Forecasting

# Chapter 3 Forecasting - Exponential Smoothing(Example 3...

This preview shows pages 1–2. Sign up to view the full content.

Exponential Smoothing (Example 3) Alpha = Smoothing constant Period (t) Actual Demand Forecast Error 0.2 1 42 2 40 42.00 -2.00 3 43 41.60 1.40 4 40 41.88 -1.88 5 41 41.50 -0.50 6 39 41.40 -2.40 7 46 40.92 5.08 8 44 41.94 2.06 9 45 42.35 2.65 10 38 42.88 -4.88 11 40 41.90 -1.90 12 41.52 MAD (0.4) 2.443 MAD (0.2) 2.4761 MAD (0.7) 2.3098 MAD (0.1) 2.4479 Linear Trend (Example 4) Week Unit Sales 1 700 2 724 3 720 4 728 5 740 6 742 7 758 8 750 9 770 10 775 Linear Trend Calculations Linear Trend Calculations (Midterm Exam) t y ty n t y ty n 1 700 700 1 10 1 325 325 1 4 2 724 1448 4 2 335 670 4 3 720 2160 9 3 172 516 9 4 728 2912 16 4 645 2580 16 5 740 3700 25 6 742 4452 36 7 758 5306 49 8 750 6000 64 9 770 6930 81 10 775 7750 100 Σ 55 7407 41358 385 Σ 10 1477 4091 30 b 7.51 b 79.70 2401.6 a 699.4 a 170 Linear Regression (Example 8) Sales, x Profits, y 7 0.15 2 0.1 6 0.13 4 0.15 14 0.25 15 0.27 16 0.24 12 0.2 14 0.27 20 0.44 15 0.34 7 0.17 Example 8 Linear Regression Calculations Linear Regression Calculations (Midterm Exam)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 4

Chapter 3 Forecasting - Exponential Smoothing(Example 3...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online