Jacob distributed a survey to his fellow students asking them how many hours they'd spent playing sports in the past day. He also asked them to rate their mood on a scale from 000 to 101010, with 101010 being the happiest. Which of the following is the best estimate of the average change in mood rating associated with a 111 hour increase in hours playing sports?
Choose 1
Choose 1

(Choice A, Checked)
A
1.51.51, point, 5 points

(Choice B)
B
444 points

(Choice C)
C
777 points

(Choice D)
D
9.59.59, point, 5 points

Which of the following is an example of search costs? a.) driving to a faraway place to find available goods b.) buying goods in some special way that is outside the normal channels c.) paying a premium cost for goods d.) selling extra goods for a discount price

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)