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The year Mary graduated college, the starting salaries of all entry-level software engineers in the United States had a mean of $65,000 and a standard deviation of $3700. That year, Mary got a job as an entry-level software engineer working for a firm in the United States. Her starting salary was $57,000. Find the z-score of Mary's starting salary relative to the starting salaries among all the entry-level software engineers in the United States for the year Mary graduated. Round your answer to two decimal places. 2 = X 5