Question: A human resources consulting firm wants to estimate the average
A human resources consulting firm wants to estimate the average salary of university graduates with a bachelor's degree in science, and 10 years of working experience, in the Toronto area. A sample of 50 such employees reveals an average of $56,387 and a standard deviation of $5,435. Assuming the salary data are approximately normally distributed, construct a 90% confidence interval for the salaries.
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