Q1) Nation job placement company is interested in developing model which might be used to describe the variation in starting salaries for college graduates based on college GPA. 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 on this sample information find out what percent of variation in starting salaries is described by GPA, and find out the equation that would forecast salary from GPA. Give a scatter plot.