Remember that when conducting a one-sample t-test, the degrees of freedom of the t statistic is:
[tex]v=n-1[/tex]
Where n is the size of the sample.
Since we have a sample of 6 datum, the degrees of freedom would be:
[tex]\begin{gathered} v=6-1 \\ \\ \Rightarrow v=5 \end{gathered}[/tex]
Answer: 5
