Martha has $200 to spend on sneakers and sweaters. Sneakers cost $50 per pair and sweaters cost $20 each. She is thinking about buying 2 pairs of sneakers and 5 pairs of sweaters. She tells you that the additional utility that she would get from the second pair of sneakers is the same as the additional utility that she would get from the fifth sweater, i. e., the marginal utility of the second sneaker is equal to the marginal utility of the fifth sweater. Show that this bundle (2 sneakers and 5 sweaters) is not optimal. Tell her how she can increase her utility by reallocating her expenditures (while still spending the same amount in total, $200). Note that I am not looking for a specific numerical answer in terms of numbers of sneakers and sweaters. I want to know what she should buy more of and what less. Explain your answe

Which of the following areas provides residents with close access to high-paying jobs and cultural attractions? a. the suburbs b. exurbs c. rural areas d. the city 2b2t

Companies hd and ld are both profitable, and they have the same total assets (ta), total invested capital, sales (s), return on assets (roa), and profit margin (pm). both firms finance using only debt and common equity. however, company hd has the higher total debt to total capital ratio. which of the following statements is correct? a) company hd has a higher assets turnover than company ld. b) company hd has a higher return on equity than company ld. c) none of the other statements are correct because the information provided on the question is not enough. d) company hd has lower total assets turnover than company ld. e) company hd has a lower operating income (ebit) than company ld

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.