The Colonial House Furniture Company manufactures four-drawer oak filing cabinets in six stages. In the first stage, the boards forming the walls of the cabinet are cut; in the second stage, the front drawer panels are woodworked; in the third stage, the boards are sanded and finished; in the fourth stage, the boards are cleaned, stained, and painted with a clear finish; in the fifth stage, the hardware for pulls, runners, and fittings is installed; and in the final stage, the cabinets are assembled. Inspection occurs at each stage of the process, and the average percent ages of good-quality units are as follows.

Stage	Average percentage of good quality
1	83 percent
2	88 percent
3	85 percent
4	90 percent
5	92 percent
6	87 percent

The cabinets are produced in weekly production runs with a product input for 400 units. The Colonial House Furniture Company has investigated the manufacturing process to identify potential improvements that would improve quality. The company has identified four alternatives, each costing $15,000, as follows. Alternative 1: Only Stage 1 quality improves to 86 percent. Alternative 2: Stage 2 quality improves to 92 percent and Stage 4 quality improves to 91 percent. All the other quality percentages remain the same as the current situation. Alternative 3: Stage 5 quality improves to 87 percent and Stage 4 quality improves to 94 percent. All the other quality percentages remain the same as the current situation. Alternative 4: Only Stage 2 quality improves to 96 percent.

What is the yield if the company chooses to go with Alternative 1? What is the yield if the company chooses to go with Alternative 2? What is the yield if the company chooses to go with Alternative 3? What is the yield if the company chooses to go with Alternative 4? Which alternative would be the most cost effective?