Telemarketing Company is monitoring the performance of four newly hired employees. It is important that employees do not spend too much time on the phone with customers, particularly if the time spent does not result in a sale. A supervisor monitors a random sample of calls taken by each new employee, measuring the time spent on the call before a sale, in minutes. You may assume that the times are normally distributed. The Excel Anova: Single Factor output is shown below in Exhibit 11.30.

Does it appear that the requirement for equal variances is met?
Use the information in Exhibit 11.30 to fill in the missing values.
€¢ The average for each employee
€¢ The degrees of freedom (Between Groups, Within Groups, and Total)
€¢ The mean squares
€¢ The F statistic

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Anova: Sinple Factor Groups Count Sum Average Variance Employee 1 Employee2 Employee 3 Employee 4 35 37 32 42 404 462 357 6.314286 14.7567G 10.32964 13.536 ANOVA Source of Variation SS Between Groups 264.6295 Within Groups1621.124 MS Toral 885 753