Suppose the Robert H. Smith School of Business at the University of Maryland would like to compare the starting salaries for both men and women who graduated with different majors. The following data show starting salaries for random students from the most recent graduating class. These data can also be found in the file starting salaries.xlsx.

Majors Finance

($)

Marketing

($)

Accounting

($)

Women 45,400 41,700 52,600 46,200 44,600 40,900 48,100 41,400 47,000 46,200 46,100 53,700 Men 49,200 43,900 44,000 50,300 42,100 50,500 43,100 43,700 45,300 53,300 39,600 47,300

a. Using a = 0.05, is there significant interaction between Factor A and Factor B (major and gender)?

b. Using a two-way ANOVA and a = 0.05, does the major have an effect on a person’s starting salary?

c. Using a two-way ANOVA and a = 0.05, does gender have an effect on a person’s starting salary?

d. If warranted, determine which means are significantly different using a = 0.05.

e. Construct an interaction plot for the major and gender factors.

AppendixLO1