Twenty-One Executives in a Large Corporation Were Randomly Selected for a Study

Multiple Choice

Twenty-one executives in a large corporation were randomly selected for a study in which several factors were examined to determine their effect on annual salary (expressed in $000's) . The factors selected were age, seniority, years of college, number of company divisions they had been exposed to and the level of their responsibility. A regression analysis was performed using a popular spreadsheet program with the following regression output: What is the effect on salary of an increase in age of two years if other variables are held constant?

A) -$62
B) -$31
C) +$31
D) +$62