1. Researchers tested farm-raised salmon from two different farms for organic contaminants. One measure they collected was the concentration of the carcinogenic insecticide mirex (parts per million).
A. Besides random samples and independent observations, list any relevant assumptions and whether or not they have been met.
B. Carry out the appropriate test to determine if the mirex concentration in the salmon from these two farms are the same, on average. Assume equal population variances. Write the hypotheses, define the parameters of interest, conduct the test, and write your conclusion.