Teacher raises A school system employs teachers at salaries between $28,000 and $60,000. The teachers union and
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Teacher raises A school system employs teachers at salaries between $28,000 and $60,000. The teachers’
union and the school board are negotiating the form of next year’s increase in the salary schedule.
(a) If every teacher is given a flat $1000 raise, what will this do to the mean salary? To the median salary? Explain your answers.
(b) What would a flat $1000 raise do to the extremes and quartiles of the salary distribution? To the standard deviation of teachers’ salaries? Explain your answers.
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