Question

I got the first part need help with the second part (b)

Answer 1

Given

`x=9`

To Determine: The degree of freedom

Solution

Degrees of freedom of an estimate is the number of independent pieces of information that went into calculating the estimate. It’s not quite the same as the number of items in the sample. In order to get the df for the estimate, you have to subtract 1 from the number of items.

The degree of freedom of one sample is

`\begin{gathered} df=n-1 \\ df=degree\text{ of freedom} \\ n=9 \\ df=9-1 \\ df=8 \end{gathered}`