The prior probabilities for s1 and s2 are P(s1)=0.8 and P(s2)=0.2.     States of Nature Decision Alternative s1 s2 d1 15 10 d2 10 12 d3 8 20

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Consider the following profit payoff table.

The prior probabilities for s1 and s2 are P(s1)=0.8 and P(s2)=0.2.

    States of Nature
Decision Alternative s1 s2
d1 15 10
d2 10 12
d3 8 20

a. What is the optimal decision?

b. Find the EVPI.

c. Suppose that sample information I is obtained, with P(I|s1)=0.20 and P(I|s2)=0.75. Find the posterior probabilities P(s1|I) and P(s2|I). Recommend a decision alternative based on these probabilities.

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