Assume that your uncle holds just one stock, east coast bank (ecb), which he thinks has very little risk. you agree that the stock is relatively safe, but you want to demonstrate that his risk would be even lower if he were more diversified. you obtain the following returns data for west coast bank (wcb). both banks have had less variability than most other stocks over the past 5 years. measured by the standard deviation of returns, by how much would your uncle's risk have been reduced if he had held a portfolio consisting of 54% in ecb and the remainder in wcb? (hint: use the sample standard deviation formula.) do not round your intermediate calculations. year ecb wcb 1 40.00% 40.00% 2 -10.00% 15.00% 3 35.00% -5.00% 4 -5.00% -10.00% 5 15.00% 35.00%

Ajax corp's sales last year were $435,000, its operating costs were $362,500, and its interest charges were $12,500. what was the firm's times-interest-earned (tie) ratio? a. 4.72b. 4.97c. 5.23d. 5.51e. 5.80

The monthly demand equation for an electric utility company is estimated to be p equals 60 minus left parenthesis 10 superscript negative 5 baseline right parenthesis x, where p is measured in dollars and x is measured in thousands of killowatt-hours. the utility has fixed costs of $3 comma 000 comma 000 per month and variable costs of $32 per 1000 kilowatt-hours of electricity generated, so the cost function is upper c left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 32 x. (a) find the value of x and the corresponding price for 1000 kilowatt-hours that maximize the utility's profit. (b) suppose that the rising fuel costs increase the utility's variable costs from $32 to $38, so its new cost function is upper c 1 left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 38 x. should the utility pass all this increase of $6 per thousand kilowatt-hours on to the consumers?

Upper a fish farm raises salmon and trout.a fish farm raises salmon and trout. the marginal cost of producing each of these products increases as more is produced. draw the firm's ppf. label it ppf1. the fish farmfish farm adopts a new technology that allows it to use fewer resources to feed the salmonfeed the salmon. draw a ppf that shows the impact of the new technology. label it ppf2.