19. Your Company manufactures and sells high end advertising signs. Your task is to determine the future probability of a Favorable Market (FM) and an Unfavorable Market (UFM). You currently believe that the P(FM) = 0.6 and P(UFM) = 0.4 (your Prior Probabilities).

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19. Your Company manufactures and sells high end advertising signs. Your task is to
determine the future probability of a Favorable Market (FM) and an Unfavorable Market
(UFM).
You currently believe that the P(FM) = 0.6 and P(UFM) = 0.4 (your Prior Probabilities).
You have the opportunity to hire an outside consulting firm (Evaluate Inc) to conduct
research and provide either a Positive or Negative Market Report You do some of your
own research on their performance on previous studies conducted for other firms. The
results of your research on Evaluate Inc showed that for all the studies that resulted in a
POSITIVE MARKET REPORT (PMR) to the customer, 80 percent of those cases ended
up being a FAVORABLE MARKET (FM) and 20 percent of those cases ended up being
an UNFAVORABLE MARKET (UFM). There were other studies that resulted in a
Negative Market Report (which are not pertinent to this problem).
The Conditional Probability formulation of this information about Evaluate Inc is:
P(PMR/FM) = 0.8
P(PMR/UNF) = 0.2
You decide to hire Evaluate to conduct the study. After the study, they come back with a
POSITIVE MARKET REPORT (PMR) to you.
You now need to compute the Posterior Probabilities of FM and UNF. That is, compute
P(FM/PMR)
and
P(UFM/PMR).
Transcribed Image Text:19. Your Company manufactures and sells high end advertising signs. Your task is to determine the future probability of a Favorable Market (FM) and an Unfavorable Market (UFM). You currently believe that the P(FM) = 0.6 and P(UFM) = 0.4 (your Prior Probabilities). You have the opportunity to hire an outside consulting firm (Evaluate Inc) to conduct research and provide either a Positive or Negative Market Report You do some of your own research on their performance on previous studies conducted for other firms. The results of your research on Evaluate Inc showed that for all the studies that resulted in a POSITIVE MARKET REPORT (PMR) to the customer, 80 percent of those cases ended up being a FAVORABLE MARKET (FM) and 20 percent of those cases ended up being an UNFAVORABLE MARKET (UFM). There were other studies that resulted in a Negative Market Report (which are not pertinent to this problem). The Conditional Probability formulation of this information about Evaluate Inc is: P(PMR/FM) = 0.8 P(PMR/UNF) = 0.2 You decide to hire Evaluate to conduct the study. After the study, they come back with a POSITIVE MARKET REPORT (PMR) to you. You now need to compute the Posterior Probabilities of FM and UNF. That is, compute P(FM/PMR) and P(UFM/PMR).
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