Question

The following data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degree in business administration.

GPA	Monthly Salary ($)
2.6	3,500
3.4	3,900
3.6	4,300
3.2	3,700
3.5	4,200
2.9	2,300

The estimated regression equation for these data is  = -544.6 + 1,310.8x and MSE =340,878. Use Table 1 of Appendix B.

a.  Develop a point estimate of the starting salary for a student with a GPA of 3.0 (to 1 decimal).
$

b.  Develop a 95% confidence interval for the mean starting salary for all students with a 3.0 GPA (to 2 decimals).
$ (  ,  )

c.  Develop a 95% prediction interval for Ryan Dailey, a student with a GPA of 3.0 (to 2 decimals).