Suppose a shipping company required all applicants to lift fifty pound boxes on and off a truck for an hour to test their strength and endurance and suppose that resulted in 50 out of 100 black applicants being hired and 10 out of 100 white applicants being hired. if this test measured the performance required on the job then this would be an example of

Suppose a movie theater determines it can charge different prices to patrons who go to weekday matinees and people who attend evening and weekend shows . the movie theater's goal is to increase total revenue. the price elasticity of demand for weekend and evening patrons is -0.40, and the price elasticity of demand for matinee moviegoers is -1.90. based on the price elasticity of demand for each group of people, how should the movie theater adjust its prices?