The following labor standards have been established for a particular product: standard labor hours per unit of output 4.0 hoursstandard labor rate $19.80 per hoursthe following data pertain to operations concerning the product for the last month: actual hours worked 6,600 hoursactual total labor cost $131,340actual output 1,600 unitswhat is the labor rate variance for the month? f or uwhat is the labor efficiency varaiance for the month? f or u

Stock a has a beta of 1.2 and a standard deviation of 20%. stock b has a beta of 0.8 and a standard deviation of 25%. portfolio p has $200,000 consisting of $100,000 invested in stock a and $100,000 in stock b. which of the following statements is correct? (assume that the stocks are in equilibrium.) (a) stock b has a higher required rate of return than stock a. (b) portfolio p has a standard deviation of 22.5%. (c) portfolio p has a beta equal to 1.0. (d) more information is needed to determine the portfolio's beta. (e) stock a's returns are less highly correlated with the returns on most other stocks than are b's returns.