What of the following statements about lp sensitivity analysis is not true? a. trial-and-error is a valid approach to undertaking sensitivity analysis. b. the shadow price is also known as the dual value. c. "allowable increase" values appear in both the adjustable cells section and the constraints section of a sensitivity report. d. sensitivity information applies to simultaneous changes in several input data values.

Croy inc. has the following projected sales for the next five months: month sales in units april 3,850 may 3,875 june 4,260 july 4,135 august 3,590 croy’s finished goods inventory policy is to have 60 percent of the next month’s sales on hand at the end of each month. direct material costs $2.50 per pound, and each unit requires 2 pounds. raw materials inventory policy is to have 50 percent of the next month’s production needs on hand at the end of each month. raw materials on hand at march 31 totaled 3,741 pounds. 1. determine budgeted production for april, may, and june. 2. determine the budgeted cost of materials purchased for april, may, and june. (round your answers to 2 decimal places.)