The additional benefit of producing one more roast beef sandwich at a local deli is $2. The additional cost of producing one more roast beef sandwich is $3. To improve allocative efficiency: a) producers should produce at least one more roast beef sandwich because MB > MC. b) producers should produce at least one more roast beef sandwich because MC > MB. c) producers should not produce one more roast beef sandwich because MB > MC. d) producers should not produce one more roast beef sandwich because MC > MB.

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