Decision D6, which has three possible choices (X, Y, or Z), must be made in year 3 of a 6-year study period in order to maximize E(PW). Using an MARR of 16% per year, the investment required in year 3, and the estimated cash flows for years 4 through 6, determine which decision should be made in year 3. High Low High D6 Low Z High Low Investment, Cash Flow, (Year Cash Flow, $1000 Cash Flow, Cash Flow, $1000 Year 3 3) (Year 4) $1000 (Year 5) (Year 6) Outcome Probability 3 4 5 6 High (X) $-190,000 $50 $50 $50 0.58 Low (X) $40 $30 $20 0.42 High (Y) $-54,000 $30 $40 $50 0.45 Low (Y) $30 $30 $30 0.55 High (Z) $-240,000 $190 $170 $150 0.7 Low (Z) $-30 $-30 $-30 0.3 The present worth of X is $ The present worth of Y is $ The present worth of Z is $ | Select decision branch Y