The Quick-Calc Financial Corporation, develops and markets software add-ons for common personal-computer spreadsheet packages. To differentiate its products from the other packages on the market, Quick-Calc has built many macros into its software. According to Quick-Calc, once a user learns the macro keystrokes, complicated financial computations become much easier to perform.As part of its product-development testing program, software engineers at Quick-Calc have selected a focus group of seven people who frequently use spreadsheet packages. Each person is given complicated financial and accounting data and is asked to prepare a detailed analysis using their favorite spreadsheet add-ons. A systems program determines the amount of time each person takes to complete the task. Once the analysis is complete, these same seven individuals are given a training course in Quick-Calc add-ons. After, the training course, they are given a similar set of data and are asked to do the same analysis. At a 5% significance level, is there a significant correlation between the software engineers speed before and after training on the simulations. Subject 1 2 3 4 5 6 7 Before Training 24 20 19 20 13 28 15 After Training 11 18 23 15 16 22 8