Answer:
Carriage Inc. should not invest in the new plant because the IRR of the project is less than its cost of capital.
Step-by-step explanation:
The investment should NOT be made in the new plant because its internal rate of return is lower than Carriage's cost of capital.
In simple language since the return (IRR) that will be gotten from the new plant is LOWER than the cost (cost of capital), then the company is not making a profit if it invests in this new plant.
Generally, as a decision rule, a company should only invest when the IRR is higher than (or equal to) its cost of capital.