The monthly salary of workers in the public works department is $1,500, $3,000, $3,500, $3,500, $4,000, $4,500, $5,000, $6,000, $6,500, $6,500, and $9,000. Explain the impact of the outlier(s) on the measure of central tendency for this data set. There is a minimal increase to the mean because there is a low outlier and a high outlier in the data set. There is a minimal decrease to the mean because there is a low outlier and a high outlier in the data set. There is a large increase to the mean because of the $9,000 outlier. There is a large decrease to the mean because of the $1,500 outlier.