5. To estimate the level of mercury in fish in a certain region of the Pacific Ocean, researchers obtained a sample of 15 fish from that region. The sample showed a mean of x = 0.293 ppm Hg (parts per million of mercury) with a standard deviation of s = 0.073 ppm Hg. How should the researchers report their findings in the form of a 95% confidence interval for the mean mercury level of fish in this region? Show your work and make sure it is clear where your answer appears. (You may assume that these fish represent a random sample of all fish in the region, and that the population of mercury levels of all fish in the region is approximately normal in its distribution.)