How long can candy last?

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

Exercise 15-7 crawford corporation incurred the following transactions. 1. purchased raw materials on account $53,000. 2. raw materials of $45,200 were requisitioned to the factory. an analysis of the materials requisition slips indicated that $9,400 was classified as indirect materials. 3. factory labor costs incurred were $65,400, of which $50,200 pertained to factory wages payable and $15,200 pertained to employer payroll taxes payable. 4. time tickets indicated that $55,000 was direct labor and $10,400 was indirect labor. 5. manufacturing overhead costs incurred on account were $81,700. 6. depreciation on the company’s office building was $8,100. 7. manufacturing overhead was applied at the rate of 160% of direct labor cost. 8. goods costing $89,400 were completed and transferred to finished goods. 9. finished goods costing $76,000 to manufacture were sold on account for $105,100. journalize the transactions. (credit account titles are automatically indented when amount is entered. do not indent manually.) no. account titles and explanation debit credit (1) (2) (3) (4) (5) (6) (7) (8) (9) (to record the sale) (to record the cost of the sale) click if you would like to show work for this question: open show work

The returns on the common stock of maynard cosmetic specialties are quite cyclical. in a boom economy, the stock is expected to return 22 percent in comparison to 9 percent in a normal economy and a negative 14 percent in a recessionary period. the probability of a recession is 35 percent while the probability of a boom is 10 percent. what is the standard deviation of the returns on this stock?