P4.19 Assume that an investment generates the following income stream and can be purchased at the beginning of 2011 for $1,000 and sold at the end of 2017 for $1,200. Estimate the yield for this investment. If a minimum return of 9% is required, would you recommend this invest- ment? Explain. End of Year Income Stream 2011 $140 2012 120 2013 100 2014 80 2015 60 2016 2017 40 220