Phoebe johnson is a senior hr executive at carmakers corp. she has been informed that the company needs to hire five line workers for their kingston plant. phoebe decides to go down to the plant to get a better idea of the work. she speaks to the line workers there and gets firsthand information about the important aspects of the job involved. phoebe is using the method to collect information.

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