I am attaching my questions below.

5. We have obtained data from a study of the emissions produced when gasoline is burned in internal combustion engines. File contains emission levels of two major pollutants (CO: Carbon monoxide emissions (grams per mile) and NOX: Nitrogen oxide emissions) for a sample of 46 light-duty engines. This data is in the file: Pollutants.csv. There is a header in the dataset. (a) Find summary statistic information and the sample sizes. We are interested in Carbon Monoxide emissions grouped by Nitrogen Oxide emissions. (b) Which group do you think has the highest Carbon Monoxide emissions? Explain your answer. (c) Which group do you think has the most varied Carbon Monoxide emissions? Explain your answer. 6. The file distributions.esv contains two columns labeled distl and dist2. One of those columns is a random sample from a normal distribution, and one is a random sample from a distribution that is not normal. (a) Construct histograms of each column. Include your graphs in your submission. (b) Conduct a Shapiro-Wilk test of each column. Report your results. (c) Construct a QQ Plot of each column. Include your graphs in your submission. (d) Based on these graphs and test, determine which came from a normal distribution and explain how you reached that conclusion