The table shows both prospective profits and losses for a company, depending on what decision is made and what state of nature occurs. Use the information to determine what the company should do.
State of Nature
Decision s1 s2 s3
d1 30 80 -30
d2 100 30 -40
d3 -80 -10 120
d4 20 20 20
a. if an optimistic strategy is used
b. if a conservative strategy is used
c. if minimax regret is the strategy