1] Open the Microsoft Excel file posted to Canvas Week 3 under the "Apply" header, called "data for homework 1." This file contains numerical data indicating species richness (# of species present) within a national park, in (a) experimental treatment plots where feral cats were removed, versus (b) control plots where feral cats remained. The complete dataset has 20 replicates (row entries). Where I give suggestions on how to use Excel functions, type what is inside the quotes (omitting the quotes themselves); you don't need to use all-caps, I'm doing that here to emphasize what are excel functions. (a) First, take a subset of the data corresponding to the number of letters in your first name. For simplicity, you can delete all the other rows of data below. For the rows left, calculate the mean value using the AVERAGE function in excel. To do this, type "=AVERAGE(" into the cell next to "mean", and then highlight the cells above for which you want to compute the average. List the mean for your treatment and control groups in their corresponding columns, in the row labeled "mean". Copy-paste below, or include in a screenshot of your graph. (1 pt) (b) For the