Question

Salary	Years	Age	MBA?
35600	7.3	33	0
71100	24.1	61	0
42300	8.6	35	1
51200	11.5	43	1
41300	13.8	40	0
64900	18.1	55	0
54600	16.9	49	0
43800	9.4	37	1
46600	12.2	48	1
50100	16	50	0
32800	4.2	28	1
49300	11.5	49	0
38100	7.3	35	1
53500	14.4	52	1
46000	10.8	45	0

The data in the above table give the annual salary (Salary), number of years of employment (Years), employee's age (Age), and whether or not the employee has an MBA degree (1 = yes, 0 = no) for 15 workers in a particular industry and location.

What proportion of the variability in the Salaries is explained by the multiple regression model using Years, Age, and MBA? as predictor variables?

Question 7 options:

	.915%
	3388.9
	91.5%
	39.6%
	89.2

Answer 1

The statistical software output for this problem is:

From the above table,

R - squared = 0.915

Hence,

Percentage of variation explained = 91.5%

Option C is correct.