Investors commonly use the standard deviation of the monthly percentage return for a mutual fund as a measure of the risk for the fund; in such cases, a fund that has a larger standard deviation is considered more risky than a fund with a lower standard deviation. the standard deviation for the american century equity growth fund and the standard deviation for the fidelity growth discovery fund were recently reported to be 15.0% and 18.9%, respectively. assume that each of these standard deviations is based on a sample of 60 months of returns. do the sample results support the conclusion that the fidelity fund has a larger population variance than the american century fund? which fund is more risky? anderson, david r.. essentials of statistics for business and economics (p. 502). south-western college pub. kindle edition.

The hawthorne works was a large western electric factory with 45,000 employees. during the 1920s and 1930s, hawthorne works was the site of some well-known industrial studies. in one of the studies, researchers investigated the impact of different working conditions on worker productivity. prior to the start of the study, researchers secretly measured workers' productivity for several weeks. then researchers chose two workers, who then chose their own teams. the teams were separated from the general workforce and completed their work in different experiment rooms where the researchers could observe them more easily. over a 5-year period researchers manipulated the structure of the workday for each team (number and duration of breaks and number of hours per shift). for each of these changes in working conditions, the researchers measured the effect on productivity. for some conditions, such as frequent short breaks, workers rebelled by intentionally decreasing productivity.why did the researchers secretly measure the workers' productivity before creating the two treatment groups? a, to create similar treatment groups so that a cause-and-effect relationship could be establishedb, to draw conclusions about the productivity of all workers in the plant based on the test groupsc, to directly control for confounding variablesd, to provide a baseline for measuring worker productivity

What are the main advantages and disadvantages of organizing a firm as a c corporation? the advantages are: (select all the choices that apply.) a. there is no limit on the number of owners a c corporation may have, thus allowing the corporation to raise substantial amounts of capital. b. the life of the business can continue beyond the death of any of the owners. c. the corporation can use the assets of the owners to pay for corporate liabilities. this attracts smaller investors to the corporation. d. the liability of the owners is limited to the amount of their investment in the firm. the disadvantages are: (select all the choices that apply.) a. income to a c corporation is subject to double taxation, once at the corporate level and again when received by the owners in the form of a dividend. b. the life of the business usually ends with the death of any of the owners. c. the c corporation is more complicated and more expensive to set up than other business entities. d. corporate liabilities can be passed on to the share

The next dividend payment by savitz, inc., will be $2.08 per share. the dividends are anticipated to maintain a growth rate of 6 percent forever. if the stock currently sells for $42 per share, what is the required return?