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San Diego State University Operations And Supply Chain Management Assignment Help - Data

Question - Past data indicate that, the amount of money contributed by the working residents of a large city to a
volunteer rescue squad is a normal random variable with a standard deviation of S1.40. It has been
suggested that the contributions to the rescue squad from just the employees of the sanitation
department are much more variable. If the contributions of a random sample of 12 employees from
the sanitation department had a standard deviation of $1.75, can we conclude at the 0.01 level of
significance that the standard deviation of the contributions of all sanitation workers is greater than
that of all workers living in this city?

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