Deborah and carlos need to decide which one of them will take time off from work to complete the rather urgent task of pruning their trees. deborah is pretty good with a pole saw; she can prune the trees in 30 minutes. carlos is somewhat slow; it takes him 5 hours to prune the trees. deborah earns $130 per hour as a psychiatrist, while carlos earns $25 per hour as a cobbler.
keeping in mind that either deborah or carlos must take time off from work to prune the trees, who has the lowest opportunity cost of completing the task?

This exercise illustrates that poor quality can affect schedules and costs. a manufacturing process has 130 customer orders to fill. each order requires one component part that is purchased from a supplier. however, typically, 3% of the components are identified as defective, and the components can be assumed to be independent. (a) if the manufacturer stocks 130 components, what is the probability that the 130 orders can be filled without reordering components? (b) if the manufacturer stocks 132 components, what is the probability that the 130 orders can be filled without reordering components? (c) if the manufacturer stocks 135 components, what is the probability that the 130 orders can be filled without reordering components?