The lotus point condo project will contain both homes and apartments. the site can accommodateup to 10,000 dwelling units. the project must contain a recreation project: either a swimming-tenniscomplex or a sailboat marina, but not both. if a marina is built, then the number of homes in theproject must be at least triple the number of apartments in the project. a marina will cost $1.2 million, and a swimming-tennis complex will cost $2.8 million. the developers believe that each apartment willyield revenues with a net present value of $48,000, and each home will yield revenues with a net presentvalue of $46,000. each home (or apartment) costs $40,000 to build. formulate an integer program lotus point maximize profits.

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e. g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.

Arnold rossiter is a 40-year-old employee of the barrington company who will retire at age 60 and expects to live to age 75. the firm has promised a retirement income of $20,000 at the end of each year following retirement until death. the firm's pension fund is expected to earn 7 percent annually on its assets and the firm uses 7% to discount pension benefits. what is barrington's annual pension contribution to the nearest dollar for mr. rossiter? (assume certainty and end-of-year cash flows.)

How is the role of government determined in the american free enterprise system?