An automotive parts manufacturing plant has been working hard to reduce employee absences. In the past, the average number of days off work (other than vacation) per year has been 6.6.The company has introduced a wellness program to encourage workers to eat well, exercise regularly, and lead healthier lifestyles. The absences of a random sample of 25 employees were examined for the current year, and are shown in Exhibit 3.51 below.

Calculate appropriate measures of central tendency and variability for this data set. Do you think the annual days off work have decreased because of the wellness program?

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Annual Days Off Work (Other than Vacation) for a Random Sample of Employees 4.5 5.5 5.5 5.5 7.5 6. 7.5 6.5 6. 6.5 5 4.5 6.5 4.5 5.5