5. You have become concerned about the amount of copier paper used in your office after repeatedly running out of supplies. Your assistant keeps track of the number of reams (packages of 500 sheets) for 24 weeks: Week 1 Reams of paper 232 Week 13 Reams of paper 253 2 263 14 270 3 271 15 230 4 248 16 253 5 235 17 238 6 261 18 272 7 207 19 222 8 243 20 243 9 237 21 289 293 22 238 243 23 262 12 260 24 234 a. b. Compare the effectiveness of two-week, four-week, and six-week moving averages. Which should you use to forecast copier paper use during the next week? Compare the performance of the simple exponential smoothing model with smoothing constants of 0.01, 0.05, and 0.25. Assume a forecast for week I of 230 reams. Which constant worked best?