Answer: $2.8million
Step-by-step explanation:
The regret associated with the alternate decision would be calculated as the difference between the payoff for the best decision alternative which is $15.7 million and the payoff for one of the other alternatives which is $12.9 million. This will be:
= $15.7million - $12.9million
= $2.8million
The regret associated with the alternate decision is $2.8million.