To an economist, wage discrimination exists when

a. b, c, and d people of different ethnic backgrounds are treated differently by employers
b. individuals of equal marginal revenue products are paid
c. different wage rates women are paid different wage rates than men.
d. African-Americans are paid different wage rates than whites.

Acompany is developing a new high­performance wax for cross country ski racing. in order to justify the price marketingwants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less thanseconds for a former olympic champion. to test it, the champion will ski the course 8 times. the champion's times(selected at random) are 59.9 61.9 48.8 52.2 46.6 45.3 50.6 and 41.1 seconds to complete the test course. complete parts a and b below.a) should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are metfor the sample.assume=0.05. what are the null and alternative hypotheses? choose the correct answer below.b) suppose they decide not to market the wax after the test, but it turns out that the wax really does lower the champion'saverage time to less thanseconds. what kind of error have they made? explain the impact to the company of such anerror.

Select all that apply. select the ways that labor unions can increase wages. collective bargaining reducing the labor supply increasing the demand for labor creating monopolies

Most angel investors expect a return on investment of question options: 20% to 25% over 5 years. 15% to 20% over 5 years. 75% over 10 years. 100% over 5 years.