If the economy booms, RTF, Inc., stock is expected to return 9 percent. If the economy goes into a recessionary period, then RTF is expected to only return 3 percent. The probability of a boom is 69 percent while the probability of a recession is 31 percent. What is the variance of the returns on RTF, Inc., stock?

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

Which of the following is one of the advantages primarily associated with a performance appraisal? (a) it protects employees against discrimination on the basis of race. (b) it motivates employees to work on their shortcomings. (c) it encourages employees to play the role of the whistle-blower. (d) it accurately measures the resources of the firm.

Acorporation a. can use different depreciation methods for tax and financial reporting purposes b. must use the straight - line depreciation method for tax purposes and double declining depreciation method financial reporting purposes c. must use different depreciation method for tax purposes, but strictly mandated depreciation methods for financial reporting purposes d. can use straight- line depreciation method for tax purposes and macrs depreciation method financial reporting purposes