15 An ecologist working with the New Jersey Department of

Last updated: 4/28/2023

15 An ecologist working with the New Jersey Department of Environmental Projection has been tasked with monitoring the water quality at beaches near Monmouth University She has recruited some of her friends to measure the concentration of Enterococcus faecalis a type of bacterium found in the gastrointestinal tract of humans and other mammals at six total beaches Over the course of several months they collected 13 samples from each beach The local nonprofit funding the research is interested in whether the log concentration of Enterococcus faecalis differs amongst the six beaches To begin the ecologist wants to determine if there is a difference in log concentration between beaches 2 and 4 Use the R printout to answer the following questions a Based on the boxplots does it appear that the log concentration of Enterococcus faecalis at beach 2 is Normally distributed Explain your reasoning according to the boxplot we can see that the log concentratio of the enterococcus facealis at beach 2 is not normally distributed due to the median box being closer to the bottom of b What test could the ecologist use to test for a difference between the two beaches A T test would be optimal in this scenario c What is the test statistic for the test you identified in the previous part How is it computed