The US Food and Drug Administration has a limit for mercury content in fish of 1.0 ppm (parts per million), while in Canada the limit is 0.5 ppm. Use the variable Avg- Mercury in the FloridaLakes dataset to test whether there is evidence that average mercury level of fish (large-mouth bass) in Florida lakes is:

(a) Less than 1.0 ppm

(b) Less than 0.5 ppm