Choose the portfolio from the following set that is not on the efficient frontier. Group of answer choices C: expected return of 38 percent; standard deviation of 38 percent A: expected return of 10 percent; standard deviation of 8 percent D: expected return of 15 percent; standard deviation of 14 percent

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

howard, fine, & howard is an advertising agency. the firm uses an activity-based costing system to allocate overhead costs to its services. information about the firm's activity cost pool rates follows: stooge company was a client of howard, fine, & howard. recently, 7 administrative assistant hours, 3 new ad campaigns, and 8 meeting hours were incurred for the stooge company account. using the activity-based costing system, how much overhead cost would be allocated to the stooge company account?

You want to have $80,000 in your savings account 11 years from now, and you’re prepared to make equal annual deposits into the account at the end of each year. if the account pays 6.30 percent interest, what amount must you deposit each year? (do not round intermediate calculations and round your answer to 2 decimal places, e. g., 32.16.)