Question: Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: Year 1 2 3

  1. Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table:

Year

1

2

3

4

5

6

Registrations

4500

6500

6775

6225

8075

8520

Forecast (=0.5)

5000

Forecast (=0.1)

5000

  1. Use exponential smoothing with a smoothing constant of 0.5 and 0.1 to forecast years 2-6.
  2. What is the MAD value for each forecast (1-6)?
  3. What is the MSE value for each forecast (1-6)?
  4. Which forecast is better? Why?

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