For example, if the total cost of producing three units of output is $2,498 and the total cost of producing four units of output is $3,087, then the marginal cost of the fourth unit is

b) a student tests 100 students to determine whether other students on her campus prefer soda brand a or soda brand b and finds no evidence that preference for brand a is not 0.5. later, a marketing company tests all students on campus and finds no difference. choose the correct answer below.

Needs to schedule the staffing of the center. it is open from 8am until midnight. larry has monitored the usage of the center at various times of the day and determined that the following number of computer consultants are required: time of dayminimum number of consultants required to be on duty8 am-noon4noon-4 pm84pm-8pm108pm-midnight6 two types of computer consultants can be hired: full-time and part-time. the full- time consultants work for eight consecutive hours in any of the shifts: morning (8am- 4pm), afternoon (noon-8pm) and evening (4pm-midnight). full-time consultants are paid $14 per hour. part-time consultants can be hired to work any of the four shifts listed in the table. part-time consultants are paid $12 per hour. an additional requirement is that during every time period, there must be at least two full-time consultants on duty for every part-time consultant on duty. larry would like to determine how many full-time and part-time consultants should work each shift to meet the above requirements at the minimum possible cost. formulate this as an lp problem. you must define your variables clearly

The silverside company is considering investing in two alternative projects: project 1 project 2 investment $500,000 $240,000 useful life (years) 8 7 estimated annual net cash inflows for useful life $120,000 $40,000 residual value $32,000 $10,000 depreciation method straightminusline straightminusline required rate of return 11% 8% what is the accounting rate of return for project 2? (round any intermediary calculations to the nearest dollar, and round your final answer to the nearest hundredth of a percent, x.xx%.)