An all-equity firm is considering the following projects: Project Beta w .63 X .76 Y 1.29 z 1.40 IRR 9.4 % 10.5 14.0 17.1 The T-bill rate is 5.1 percent, and the expected return on the market is 12.1 percent. Compared with the firm's 12.1 percent cost of capital, Project W has a expected return, Project X has a expected return, Project Y has a expected return, and Project Z has a expected return. Project W should be Project X should be and Project Z Project Y should be should be If the firm's overall cost of capital were used as a hurdle rate, Project W would be Project X would be and Project Z would be Project Y would be