A clean air standard requires that vehicle exhaust emissions not exceed specified limits for various pollutants. Many states require that cars be tested annually to be sure they meet these standards. State regulators are checking up on repair shops to see if they are certifying vehicles that do not meet pollution standards.

a) In thiscontext, what is meant by the power of the test the regulators areconducting?

b) Will the power be greater if they test 20 or 40cars? Why?

c) Will the power be greater if they use a5% or a10% level ofsignificance? Why?

d) Will the power be greater if the repairshop's inspectors are only a little out of compliance or alot? Why?