Kim now believes that the two detector indications are relevant given weather and her background state of information. She still believes that Alpha detector's accuracy equals 0.8 and the Beta...

Kim now believes that the two detector indications are relevant given weather and her background state of information. She still believes that Alpha detector's accuracy equals 0.8 and the Beta detector's accuracy equals 0.9, but she is having great difficulty assessing the relevance between them. Assume for this analysis that

{ Beta says "S" | Alpha says "S", Sun, & } = { Beta says "R" | Alpha says "R", Rain, & }

Show how Kim's optimal choice might change when the detectors become relevant.

Refer to Figure 18.2 and reverse the tree in the following order:

a. Beta Detector-Weather-Acme Detector

b. Acme Detector-Weather-Beta Detector