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QUESTION
A study is set up to determine the average remuneration earned by members of city council in large cities. It is desired that the error from the mean...
A study is set up to determine the average remuneration earned by members of city council in large cities. It is desired that the error from the mean is less than $500 with a 90% level of confidence. Previous studies have showed there is a standard deviation of $3,250 among city council member salaries . What sample size is required?
