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A company wants to forecast demand using the weighted moving average. If the company uses three prior yearly sales values (i.e., year 2014= 160, year 2015= 140, and year 2016= 170), and we want to weight year 2014at 30 percent, year 2015at 30 percent, and year 2016at 40 percent, which of the following is the weighted moving average forecast for year 2017?

Because the scope of ERP packages is very large, it is rarely necessary to add additional software.

Which of the following is the net requirement using an MRP program if the gross requirement is 1,000 and the inventory on hand is 500?

Net change MRP systems are “activity” driven.

Which of the following values for z should we use in as a safety stock calculation if we want a service probability of 98 percent?

In the time-cost CPM model, cost is assumed to be a linear function of time.

In an MRP problem, A is an MPS item. Every A requires 2 B’s and 3 C’s. Every B requires 5 C’s. All lead times are two periods. All initial inventory values are 0. Use lot-4-lot method for order quantities for all items. What is the low level code (LLC) for B and C?

Best operating level is the volume of output at which average unit cost is minimized.

Which of the following is a possible source of bias error in forecasting?

Experience and trial and error are the simplest ways to choose weights for the weighted moving average forecasting model.