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Chapter 12: Q.12.10 (page 695)

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

Expert verified

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

Step by step solution

01

Given information

Given in the question that

r=0

n=100

02

Solution

Here we need to compute the degree of freedom,

df=n鈭�2

=100鈭�2

=98

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

So, the r(0)is grater than the positive critical value (0.195). Therefore the ris significant

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