The effect of copper sulfate on the mucus cells in the gill filaments of a certain species of fish was investigated. We wish to know if expo- sure for 24 hours to copper sulfate reduces the number of mucus cells in this species. The number of mucus cells per square mm in the gill filaments of both untreated fish and exposed fish were as followUntreated Exposed 10 14 16 14 18For each of the following problems, state the appropriate null hypothesis and the alternative hy- pothesis, conduct the appropriate test, and state a conclusion. Reject the H0 if p  0.05. Be sure to in- clude the p-value. Assume the variable in question to be approximately normally distributed unless in- structed otherwise.