Random Samples of Employees from Three Different Departments of MNM

Essay

Random samples of employees from three different departments of MNM Corporation showed the following yearly incomes (in $1,000s). $$\begin{array} { c c c } \text { Department A } & \text { Department B } & \text { Department C } \\40 & 46 & 46 \\37 & 41 & 40 \\43 & 43 & 41 \\41 & 33 & 48 \\35 & 41 & 39 \\38 & 42 & 45\end{array}$$ At α = .05, test to determine if there is a significant difference among the average incomes of the employees from the three departments.