Suppose You Are a Researcher Investigating the Annual Sales Differences

Essay

Suppose you are a researcher investigating the annual sales differences among five categories of businesses.The study looks at a total of 55 companies equally divided among categories groups A,B,C,D,and E.
$$\begin{array} { | l | c | c | c | c | } \hline \text { Source } & \text { SS } & d f & \text { MS } & F \\\hline \text { Treatment } & 583.39 & 4 & 145.85 & 7.501 \\\hline \text { Error } & 972.18 & 50 & 19.4436 & \\\hline \text { Total } & 1555.57 & 54 & & \\\hline\end{array}$$