For the data below: 
(a) Determine the least squares regression line.
(b) Determine the predicted value for 2004.
(c) Determine the MAD.
(d) Determine the unadjusted forecasting MSE.
Definitions:
Lessee
The party in a lease agreement who rents or leases property from the lessor.
Lease as Asset
An agreement where a lessee gains the right to use an asset for a specified period in exchange for payment, recognized as an asset on the lessee's balance sheet under certain conditions.
Purchase Option
A clause in a contract that allows one party to purchase goods or assets from the other party at a predetermined price within a specified timeframe.
Market Rate of Interest
The prevailing rate at which interest is paid by borrowers for loans or earned by investors in the financial markets.
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