Does Money Buy Happiness? a Research Collected Data on How

Short Answer

Does money buy happiness? A research collected data on how much individuals spent for the holidays, and how satisfied they were with their holiday season, overall. Below are the data:
$$\begin{array} { c c } \hline \text { Dollars } & \text { Satisfaction } \\\hline 100 & 4 \\140 & 7 \\130 & 3 \\190 & 4 \\120 & 7 \\100 & 4 \\150 & 8 \\140 & 2 \\160 & 9 \\180 & 10 \\70 & 5 \\120 & 7 \\90 & 2 \\70 & 4 \\\hline\end{array}$$ how many degrees of freedom are there for the test?