Explain the difference between qualitative and quantitative approaches to forecasting. Describe three (3) qualitative methods used in forecasting. Given the following data of demand for shopping carts at a leading supermarket. Prepare a forecast for period 6 using each of the following approaches:   Period 1 2 3 4 5 Demand 60 65 55 58 64   A three-period moving average. A weighted average using weights of .50 (most recent), .20 and .30. Exponential smoothing with a smoothing constant of .40.   The manager of a large cement production factory in Road Town, Tortola has to choose between two alternative forecasting techniques. His production staff used both techniques in order to prepare forecasts for a six-month period (See table below). Using MAD as a criterion, which technique has the better performance record?           FORECAST MONTH DEMAND TECHNIQUE 1 TECHNIQUE 2 1 492 488 495 2 470 484 482 3 485 480 478 4 493 490 488 5 498 497 492 6 492 493 493 Please help me solve the whole question please

Practical Management Science
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Author:WINSTON, Wayne L.
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  1. Explain the difference between qualitative and quantitative approaches to forecasting.
  2. Describe three (3) qualitative methods used in forecasting.
  • Given the following data of demand for shopping carts at a leading supermarket. Prepare a forecast for period 6 using each of the following approaches:

 

Period

1

2

3

4

5

Demand

60

65

55

58

64

 

  1. A three-period moving average.
  2. A weighted average using weights of .50 (most recent), .20 and .30.
  3. Exponential smoothing with a smoothing constant of .40.

 

  1. The manager of a large cement production factory in Road Town, Tortola has to choose between two alternative forecasting techniques. His production staff used both techniques in order to prepare forecasts for a six-month period (See table below). Using MAD as a criterion, which technique has the better performance record?

 

 

 

 

 

FORECAST

MONTH

DEMAND

TECHNIQUE 1

TECHNIQUE 2

1

492

488

495

2

470

484

482

3

485

480

478

4

493

490

488

5

498

497

492

6

492

493

493

Please help me solve the whole question please 

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