For Questions Below, Use the Following a Researcher Used a Three

For questions below, use the following A researcher used a three, matched-subjects experimental design, and establishes the following data: Scores Ranked by Rows $$\begin{array} { c c c } \text { Group 1 } & \text { Group2 } & \text { Group 3 } \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3 \\1 & 2 & 3\end{array}$$
-Indicate the number of degrees of freedom.