For the following scenarios, determine which type of confidence interval would be best in answering the question of interest. There are two common methods for measuring the concentration of pollutants in fish tissue. You apply one method to a random sample of 18 carp and then apply the second method to another random sample of 25 carp in the same pond. Estimate the average difference in concentration of pollutants in fish tissue between the two methods. A two proportion z interval [ Select ] A two sample t interval for means A two proportion z interval Is exercise A one proportion z interval A one sample t interval for means tive than drug treatment alone at reducing