Amazon reported the following results for the year ended Dec. 31, 2019: Sales $ 7,200,000 Variable expenses 5,400,000 Contribution margin 1,800,000 Fixed expenses 1,296,000 Net operating income $ 504,000 Average operating assets $ 4,000,000 At the beginning of 2020, Amazon finds it has an $800,000 investment opportunity with the following expectations: Sales $ 2,480,000 Contribution margin ratio 40 % of sales Fixed expenses $ 800,800 Amazon's minimum required rate of return is 14%. If Amazon pursues the new investment opportunity in 2020 and further expects its main operations to remain consistent with last year, Amazon's combined residual income for the entire company in 2020 will be closest to: Multiple Choice $23,200 ($44,000) $628,000 $652,800

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.

Asmall town wants to build some new recreational facilities. the proposed facilities include a swimming pool, recreation center, basketball court and baseball field. the town council wants to provide the facilities which will be used by the most people, but they face budget and land limitations. the town has $400,000 and 14 acres of land. the pool requires locker facilities which would be in the recreation center, so if the swimming pool is built the recreation center must also be built. also, the council has only enough flat land to build the basketball court or the baseball field. the daily usage and cost of the facilities (in $1,000) are shown below. which facilities should they build? facilityusagecost ($1,000)landswimming pool4001002recreation center5002003basketball court3001504baseball field2001005

Consider a firm with a contract to sell an asset for $149,000 four years from now. the asset costs $85,000 to produce today. a. given a relevant discount rate of 14 percent per year, calculate the profit the firm will make on this asset. (a loss should be indicated by a minus sign. do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. at what rate does the firm just break even?