The expected rates of return and risk measures for two portfolios as well as the market index are given in the following table. The T-bill rate is currently 5%.

	Portfolio A	Portfolio B	Market Index
Expected return	12%	16%	13%
Beta	0.7	1.4	1.0
Standard deviation	12%	31%	18%

Required:

If you currently hold a market-index portfolio, would you choose to add either of these portfolios to your holdings?

Note: Negative amount should be indicated by a minus sign. Round your answers to 1 decimal place.

If you could invest only in T-bills and one of these portfolios, which would you choose?

Alpha for Portfolio A:

Alpha for Portfolio B: