Deborah Kellogg buys Breathalyzer test sets for the Winter Park Police Department. The quality of the test sets from her two suppliers is indicated in the following table: Probability for Winter Park Percent Defective Probability for Dayton Enterprises Technology
1 .70 .30
2 .20 .30
3 .10 .40
For example, the probability of getting a batch of tests that are 1% defective from Winter Park Technology is . Because Kellogg orders tests per order, this would mean that there is a probability of getting defective tests out of the tests if Winter Park Technology is used to fill the order. A defective Breathalyzer test set can be repaired for . Although the quality of the test sets of the second supplier, Dayton Enterprises, is lower, it will sell an order of test sets for less than Winter Park.
a. What is the node value for Winter Park?
b. What is the node value for Dayton?
c. Based on cost, which supplier should Deborah Kellogg select?