An electrical contractor's records during the last five weeks indicate the number of job requests: Week: Requests: 1 21 2 3 4 5 23 21 22 23 Click here for the Excel Data File Predict the number of requests for week 6 using each of these methods: a. Naive. Number of requests 23 b. A four-period moving average. (Round your answer to 2 decimal places.) Number of requests 22.25 c. Exponential smoothing with a = 0.15. Use 21 for week 2 forecast. (Round your intermediate forecast values and final answers to 2 decimal places.) Number of Requests F3 F4 F5 F6