Question

Decision	State-of-Nature 1	State-of-Nature 2	State-of-Nature 3	State-of-Nature 4
Alternative 1	10	0	5	25
Alternative 2	0	35	65	0
Alternative 3	5	20	50	35
Alternative 4	15	0	10	20

Construct the regret table using the table above.

	S1	S2	S3	S4
A1
A2
A3
A4

Answer 1

first we get maximum of each state and then deduct value of the cell will given regret table value

hence below is the regret table

decision	S1	S2	S3	S4
A1	5	35	60	10
A2	15	0	0	35
A3	10	15	15	0
A4	0	35	55	15