A nation job placement company is interested in the developing a model which may be employed to describe the variation in starting salaries for college graduates based upon college GPA. The following data were gathered through random sample of clients with which this company has been associated.
| GPA |
Starting Salary |
| 3.2 |
$35,000 |
| 3.4 |
$29,500 |
| 2.9 |
$30,000 |
| 3.6 |
$36,400 |
| 2.5 |
$31,500 |
| 3 |
$29,000 |
| 3.6 |
$33,200 |
| 2.9 |
$37,600 |
| 3.5 |
$36,000 |
Based upon this sample information find out what percent of variation in starting salaries is stated by GPA, and determine an equation that would predict salary from the GPA. Provide the scatter plot.