According to the textbook, a product tree can assist a manufacturer to do which of the following? Show how a product is put together Compute component usage Identify each item Determine the quantity used per unit of the item of which it is a part All of the above Quality control charts usually have a central line and upper and lower control limit lines. Which of the following are reasons that the process being monitored with the chart should be investigated? A single plot falls above or below the control limits A large number of plots are on or near the central line A change in raw materials or operators No real trend in any direction Normal behavior Which of the following statements is right about MRP? MRP is based on dependent demand. MRP is most valuable where a number of products are made in batches using the same productive equipment. MRP is a logical, easily understandable approach to the problem of determining the number of parts, components, and materials needed to produce each end item. MRP provides the schedule specifying when each part and component of an end item should be ordered or produced. All of the above Dependent demand and independent demand items differ in that for any product, all components are dependent-demand items cars and computers are good examples of dependent demand items It is appropriate to use Economic Order Quantity model to manage dependent demand items a) and c) None of the above