The demand curve and marginal revenue curve for red rubber balls are given as follows: q = 16minusp mr = 16minus2q what is the profit-maximizing price?

a.5.5

b. 6

c. 0

d. 4

e. b, c, and d all maximize profit.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

Which of the following best explains why the demand for housing is more flexible than the supply? a. new housing developments are being constructed all the time. b. low interest rates for mortgages make buying a home very affordable. c. the increasing population always drives demand upwards. d. people can move more easily than producers can build new homes.

If the reserve requirement is 10 percent, what amount of excess reserves does a bank acquire when a business deposits a $500 check drawn on another bank?