Question: Using the following hypothetical data, determine whether there is a statistically significant difference at the .05 level between seasons in the use of sick leave by personnel of a hospital. Sick leave was tabulated over a 10 year period. Assume all scores are independent of each other. Show all four steps of our hypothesis testing procedure and display your results in a complete ANOVA summary table. Also have SPSS plot the treatment means.

Winter Spring Summer Fall

4.7 6.2 1.8 2.9

3.8 5.1 3.0 3.5

6.4 7.6 4.2 4.0

2.9 6.5 2.8 5.3

4.2 4.9 3.1 3.8

3.6 5.5 4.1 4.0

4.2 5.4 3.2 3.1

4.4 4.9 2.7 3.2

3.8 4.8 3.0 3.5