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 | ? |