Share
Explore BrainMass

Regression analysis

6. Given the following:

Salary (in Thousands) annual absences
22 2.3
23 2.0
25 2.0
27 1.8
31 2.2
32 1.5
34 1.2
37 1.3
40 0.6

a. Graph the data
_
b. What is x
_
c. What is y

d. Find b0

e. Find b1

f. Determine the equation of the line of best fit

g. Is there a strong relationship?

h. Estimate the average number of absences for someone earning $28,000.

i. Estimate the average number of absences for someone earning $36,000.

Solution Preview

Please see the attached word file.

6. Given the following:

Salary (in Thousands) annual absences
22 2.3
23 2.0
25 2.0
27 1.8
31 2.2
32 1.5
34 1.2
37 1.3
40 0.6

a. Graph the data

Salary :X Annual absences ...

Solution Summary

The solution provides step-by-step method for the calculation of regression coefficient and correlation coefficient. Formula for the calculation and Interpretations of the results are also included.

$2.19