Final answer:
The forecasted demand for type A blood at Damascus Hospital for the week of October 12, using the 3-week moving average method, is 374.67 pints after rounding to two decimal places.
Step-by-step explanation:
The student is asking to calculate the forecasted demand for type A blood for the week of October 12 using a 3-week moving average method. To do this, we take the number of pints used in the most recent three weeks, add them together, and then divide by three to get the average. The pints used in the weeks of September 21, September 28, and October 5 are 378, 368, and 378 respectively. The calculation would be as follows:
(378 + 368 + 378) ÷ 3 = 1124 ÷ 3 = 374.67 pints
Rounding to two decimal places, the forecasted demand for the week of October 12 would be 374.67 pints of type A blood.