A study is done to see if there is a relationship between the cost of tuition…

A study is done to see if there is a
relationship between the cost of tuition of colleges and the
average salary that graduates make 5 years after
college.  A random sample of 100 colleges is taken and
the tuition and average salary information is recorded for each
college.  The key statistics are tabled below.

Cost of tuition

Mean = $17,500
SD = $3,700

Average salary of graduates

Mean = $33,000
SD = $9,000

Correlation between tuition and salary

r = .25

Sample size

n = 100

c.                   Predict
the salary of a graduate from a college with a tuition of
$25,000.