An electrical contractor's records during the last five weeks indicate the number of job requests: Week 1 2 3 4 5 Requests 21 22 18 21 22 Predict the number of requests for week 6 using each of these methods: Naive A three period moving average Weighted moving average using 0.50 for week 5, 0.35 for week 4, and 0.15 for week 3. Exponential smoothing with α = .30. Use 20 for week 2 forecast.

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