Shown here is a decision table from a business situation. The decision maker has an opportunity to purchase sample information in the form of a forecast. With the sample information, the prior probabilities can be revised. Also shown are the probabilities of forecasts from the sample information for each state of nature. Use this information to answer parts (a) through (d).

		state of..	..nature
Alternative		s1 (.30)	s2 (.70)
alternative	d1	$350	-100
alternative	d2	-200	325

		State of..	..Nature
Forecast		s1	s2
forecast	s1	.90	.25
forecast	s2	.10	.75

a. Compute the expected monetary value of this decision without sample information.

b. Compute the expected monetary value of this decision with sample information.

c. Use a tree diagram to show the decision options in parts (a) and (b).

d. Calculate the value of the sample information.