The law of supply states that there is a relationship between price and quantity positive; supplied negative; demanded positive; demanded negative; supplied

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

The management of a private investment club has a fund of $250,000 earmarked for investment in stocks. to arrive at an acceptable overall level of risk, the stocks that management is considering have been classified into three categories: high risk (x), medium risk (y), and low risk (z). management estimates that high risk stocks will have a rate of return of 15%/year; medium risk stocks, 10%/year; and low risk stocks, 6%/year. the amount of money invested in low risk stocks is to be twice the sum of the amount invested in stocks of the other two categories. if the investment goal is to have a rate of return of 9% on the total investment, determine how much the club should invest in each type of stock. (assume that all the money available for investment is invested.)

The following accounts appeared in recent financial statements of delta air lines. identify each account as either a balance sheet account or an income statement account. for each balance sheet account, identify it as an asset, a liability, or stockholders' equity. for each income statement account, identify it as a revenue or an expense. item financial statement type of account accounts payable balance sheet advanced payments for equipment balance sheet air traffic liability balance sheet aircraft fuel (expense) income statement aircraft maintenance (expense) income statement aircraft rent (expense) income statement cargo revenue income statement cash balance sheet contract carrier arrangements (expense) income statement flight equipment balance sheet frequent flyer (obligations) balance sheet fuel inventory balance sheet landing fees (expense) income statement parts and supplies inventories balance sheet passenger commissions (expense) income statement passenger revenue income statement prepaid expenses income statement taxes payable balance sheet