Shellhammer Company's inventory records show the following data for the month of September: Units Unit Cost Inventory, September 1 100 $3.34 Purchases: September 8 450 3.50 September 18 350 3.70 A physical inventory on September 30 shows 200 units on hand. If the company uses FIFO inventory costing and a periodic inventory system, the the value of ending inventory at the end of September is

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1