Question: An electrical contractor's records during the last five weeks indicate the number of job requests: week 1 2 3 4 5 requests 20 22 18

An electrical contractor's records during the last five weeks indicate the number of job requests:

week 1 2 3 4 5
requests 20 22 18 21 22

Predict the number of requests for week 6 using each of these methods:

1. Nave

2. A Four-Period moving average.

3. Exponential smoothing with = 0.30.

4. If in period 6 actual/real at the end it has been 24, what forecasting technique has been more accurate according to MAD?

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