The scientific method is useful a. only in fields of science ...

[waynest]

The scientific method is useful
 a. only in fields of science such as chemistry and physics
  b. for testing the validity of theoretical predictions
  c. for testing the validity of a model's assumptions
  d. when no economic variables can be assumed to be constant
  e. only if a theory has been proven to be true

Question 2

The assumption of rational self-interest means that economic decision makers
 a. have no concern for the welfare of others
  b. consider the welfare of others to be more important than their own happiness
  c. know with certainty which choice will have the best result
  d. make reasonable decisions based on their expectations of results
  e. do not make incorrect decisions or bad choices

[Brenm]

Answer to Question 1

B

Answer to Question 2

D

[waynest]

Thank you

[Brenm]

Happy to help you