A large international sales organization has collected data on the number of employees and the annual gross sales during the last 7 years. Determine:
- A scatter diagram
- The correlation coefficient
- The coefficient of determination
- The least squares trend line
- The predicted value of sales for 2100 employees
| # of employees | Sales (in $000's) |
| 1975 | 100 |
| 2010 | 110 |
| 2005 | 122 |
| 2020 | 130 |
| 2030 | 139 |
| 2031 | 152 |
| 2002 | 165 |
| 2100 | ? |