Suppose that the standard deviation of monthly changes in the price of jet fuel is $2. The standard deviation of monthly changes in crude oil (which is similar to jet fuel) is $3. The correlation between jet fuel and crude oil is 0.9. What position in crude oil futures should be used by Southwest to hedge the purchase of 50,000 gallons of jet fuel at the end of one month. The multiplier for crude oil futures contracts is 1,000. Group of answer choices Sell 0.6 contracts. Buy 0.6 contracts. Sell 30 contracts. Buy 30 contracts.

Jing-sheng facilitated a hiring committee for his advertising company. six employees (including two managers) met together to discuss applicants and select the finalists for a copywriter position in the public relations department. although the head of public relations would have the final nod on the candidate that would ultimately be hired, the evaluative work of the committee was very important because this group would send forward those persons they believed would be good work colleagues. in setting up this type of hiring process, the head of public relations was utilizing a(n) style of leadership.a. autocraticb. free-reinc. contingentd. participative

Andrew cooper decides to become a part owner of a corporation. as a part owner, he expects to receive a profit as payment because he has assumed the risk of - serious inflation eroding the purchasing power of his investment.- being paid before the suppliers and employees are paid.- losing his home, car, and life savings.- losing the money he has invested in the corporation and not receiving profits.- the company giving all of the profits to local communities

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