You have been asked to determine the standard cost for each personalized stepping stone manufactured by a stone and tile company. each customized stone requires one stone, 3 ounces of paint, 45 minutes of direct labor (engraving, painting, packaging), and a box for packaging. you receive the following cost information: the company applies overhead at a rate of $12.40 per direct labor hour, and fringe benefits for workers are an additional 25% of wages. what is the standard cost of producing one small stepping stone?

a : $10.52
b : $37.16
c : $17.34
d : $27.86

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