Two Competitive Brothers, Who Work in Two Different Industries, Were

question 20

Multiple Choice

Two competitive brothers, who work in two different industries, were comparing their salaries. Because there is a difference of 4 years in their respective work experience, they decided to compare, not their actual salaries, but to compare their salaries against their company averages to see who is doing better. The following gives the brothers' salaries, companies' mean, and standard deviation for each company. What is the z-score of Tom's salary?

• A) -1.29
• B) 1.29
• C) -1.89
• D) 1.89
• E) None of the choices are correct.

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