Final answer:
A zero shadow price in sensitivity analysis indicates that the resource has not been used up.
Step-by-step explanation:
In sensitivity analysis, a zero shadow price (or dual value) for a resource ordinarily means that the resource has not been used up.
This statement is True.
Shadow price or dual value in sensitivity analysis represents the marginal value of a resource. When the shadow price is zero, it indicates that the resource is not a binding constraint and has not been fully utilized.