Load the data in "6304 Assignment 2 Data.xlsx" into an object. The file includes 10000 observations for each of four variables, which are creatively named for the four Marx Brothers. Analysis: 1. Use common tools to determine whether any of the four variables are normally distributed. Explain how you arrived at your conclusions. 2. Focus on the Groucho variable. Build a sampling distribution of the population mean by: a. Taking 1000 samples of n=25. b. Calculating the mean for each of the 1000 samples and storing them. c. Using the tools you know to show the 1000 sample means are normally distributed. Your deliverable will be a single MS-Word file showing 1) the R script which executes the above instructions and 2) the results of those instructions