Data utilities | Mathematics homework help
The file P03_64.xlsx lists monthly data since 1950 on the well-known Dow Jones Industrial Average (DJIA), as well as the less well-known Dow Jones Transportation Average (DJTA) and Dow Jones Utilities Average (DJUA). Each of these is an index based on 20 to 30 leading companies (which change over time). a. Create monthly differences in three new columns. The Jan-50 values will be blank because […]