Stock a's beta is 1.7 and stock b's beta is 0.7. which of the following statements must be true about these securities? (assume market equilibrium.)a. stock b must be a more desirable addition to a portfolio than a. b. stock a must be a more desirable addition to a portfolio than b. c. the expected return on stock a should be greater than that on b. d. the expected return on stock b should be greater than that on a. e. when held in isolation, stock a has more risk than stock b.

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Xinhong company is considering replacing one of its manufacturing machines. the machine has a book value of $39,000 and a remaining useful life of 5 years, at which time its salvage value will be zero. it has a current market value of $49,000. variable manufacturing costs are $33,300 per year for this machine. information on two alternative replacement machines follows. alternative a alternative b cost $ 115,000 $ 117,000 variable manufacturing costs per year 22,900 10,100 1. calculate the total change in net income if alternative a and b is adopted. 2. should xinhong keep or replace its manufacturing machine