A PCB manufacturer needs to run tests on 2 separate components of a board, R & Q. These can be tested in either order and if either test fails the board is scrapped (Board is worthless if R works but Q doesn't, and vice-versa) Given the costs and probabilities of failure, construct the decision tree and determine the expected cost. (You can assume that (P(R pass)) is independent of P(Q pass)) Also you have to pay for the test, even if the component fails What is the preferred test order? Construct a decision tree test R Q cost 6.50 8.00 P(failure) .15 .1 42