An electrical contractor's records during the last five weeks indicate the number of job requests: Click here for the Excel Data File Predict the number of requests for week 6 using each of these methods: a. Naive. b. A four-period moving average. (Round your answer to 2 decimal places.) b. A four-period moving average. (Round your answer to 2 decimal places.) c. Exponential smoothing with a=0.30. Use 20 for week 2 forecast. (Round your intermediate calculations and final answers to 2 decimal places.)