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PROBLEM IV. The number of items sold over a six-month period are: month: 1 2 3 4 5 6 sales: 4410 4540 4520 4480 4390 4530 Calculate the forecast for the 4th, 5th, 6th and 7th months using 3-month simple moving average, and 3-month weighted moving average with weights of 0.5 for the most recent month and 0.3 for the month preceding the most recent month. (15) Under the 3-month Simple Moving Average Method, the forecast for the 5th month is: (a) 4490 (b) 4513.33 (c) 4543.33 (d) 4556.18 (e) none of the above (16) Under the 3-month Simple Moving Average Method, the forecast for the 7" month is: (a) 4458 (b) 4525 (c) 4484.24 (d) 4466.67 (e) none of the above (17) Under the 3-month Weighted Moving Average Method, the forecast for the month is: (a) 4443 (b) 4512 (c) 4563 (d) 4457 (e) none of the above (18) Under the 3-month Weighted Moving Average Method, the forecast for the 7h month is: (a) 4497 (b) 4532 (c) 4478 (d) 4576 (e) none of the above PROBLEM V. The number of items sold over a six-month period are: month: 1 2 3 4 5 6 sales: 4410 4540 4520 4480 4390 4530 Calculate the forecast for the 7th month, using exponential smoothing method, with a smoothing constant of 0.3. (19) Under the Exponential Smoothing Method, the forecast for the 5th month is: (a) 4489.34 (b) 4532.54 (c) 4473.21 (d) 4554.35 (e) none of the above (20) Under the Exponential Smoothing Method, the forecast for the 6 month is: (a) 4478.32 (b) 4448.25 (c) 4564.29 (d) 4572.28 (e) none of the above (21) Under the Exponential Smoothing Method, the forecast for the 7th month is: (a) 4472.77 (0) 4521.34 (c) 4473.16 (d) 4574.18 (e) none of the above