A mortgage pass-through security is comprised of the following pool of mortgages. Find the weighted average coupon, weighted average maturity, stated maturity, and stated coupon rate. There is a 0.5% servicing fee.

$150,000 in 7% mortgages with 27 years remaining $250,000 in 7.5% mortgages with 28 years remaining $300,000 in 8% mortgages with 29 years remaining $300,000 in 7.5% mortgages with 30 years remaining