ANOVA. The times required by three workers to perform an assembly line task were recorded on five randomly selected occasions. Here are the times, to the nearest minute:

	Tyler	Joseph	Susan
	8	9	9
	10	9	9
	9	11	10
	11	8	11
	8	10	9
Averages:	9.2	9.4	9.6

At the 1% significance level, does there appear to be a difference in the mean time among the three workers? Perform an ANOVA test, showing all steps of your calculations.

You are welcome to use Excel to check your answers. To justify your answer, however, you must write out all steps, assumptions, formulas, and calculations as fully as possible.