An amount of $150,000 is invested into an annuity that pays $6000 at the end of 6 months for 20 years. What is the nominal interest rate, compounded semi-annually, that is required to support the payments?

I have

N=40 (20 years x 2 semi annually)

C/Y=2

P/Y=2

i/y=?

PV= 150,000

PMT=6000

FV=0

I cant get this to compute correctly.