We will investigate CAPM in the data. There is a supporting spreadsheet: Homework 4 Example.xlxs on Canvas. Problem 2a. From the spreadsheet: what is the and on ATT? Hypothesize: why is ATTs what it is? Problem 2b. From the spreadsheet: how does the and on AAPL change over the three periods plotted: 1993-2000, 2000-2007, 2007-present? Hypothesize: why do these values change over time? Problem 2c. How well do you think CAPM describes BioNtech (BNTX)? Problem 2d. Why does the graph for SPXL look so different from the other assets?