Final answer:
The statement is false, tpmt can be positive or negative depending on the inflow or outflow of money in an annuity.
Step-by-step explanation:
The statement tpmt is always entered as a positive number on a financial calculator when solving annuity problems is false.
tpmt is actually the payment made per period in an annuity, and it can be positive or negative depending on whether it represents an inflow or outflow of money. If it represents money coming in, it is entered as a positive number, and if it represents money going out, it is entered as a negative number.
For example, if you are receiving monthly payments of $500, you would enter tpmt as -500 on the financial calculator.