Question

For a given line of best fit, you compute that r = 0 using n = 100 data points. Can the line be used for prediction? Why or why not?

Short answer

Yes, the line can be used for prediction, because r > the positive critical value.

Step-by-step solution

Given information

Given in the question that

$r=0$

$n=100$

Solution

Here we need to compute the degree of freedom,

$df=n-2$

$=100-2$

$=98$

Here the critical value $0.195$is associated with the degree of freedom $98$.

So, the $r\left(0\right)$is grater than the positive critical value $(0.195)$. Therefore the $r$is significant