Using the data in the following table, and the fact that the correlation of A and B is 0.48, calculate the volatility (standard deviation) of a portfolio that is 70% invested in stock A and 30% invested in stock B. Year Stock AStock B2008-4% 22%200914% 25%20109% 3%2011-6% -5%20124% -10%201313% 30%The standard deviation of the portfolio is ___% (Round to two decimal places.)

The wall street journal reported that walmart stores inc. is planning to lay off 2,300 employees at its sam's club warehouse unit. approximately half of the layoffs will be hourly employees (the wall street journal, january 25-26, 2014). suppose the following data represent the percentage of hourly employees laid off for 15 sam's club stores. 55 56 44 43 44 56 60 62 57 45 36 38 50 69 65 (a) compute the mean and median percentage of hourly employees being laid off at these stores. (b) compute the first and third quartiles. (c) compute the range and interquartile range. (d) compute the variance and standard deviation. (e) do the data contain any outliers? (f) based on the sample data, does it appear that walmart is meeting its goal for reducing the number of hourly employees?

Suppose an economy has only two sectors: goods and services. each year, goods sells 80% of its outputs to services and keeps the rest, while services sells 62% of its output to goods and retains the rest. find equilibrium prices for the annual outputs of the goods and services sectors that make each sector's income match its expenditures.

Beranek corp has $720,000 of assets, and it uses no debt--it is financed only with common equity. the new cfo wants to employ enough debt to raise the debt/assets ratio to 40%, using the proceeds from borrowing to buy back common stock at its book value. how much must the firm borrow to achieve the target debt ratio? a. $273,600b. $288,000c. $302,400d. $317,520e. $333,396