Question

for a data set of brain volumes (cm³) and iq scores of four males, the linear correlation coefficient is r = 0.989. use the table available below to find the critical values of r. based on a comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation? click the icon to view the table of critical values of r. the critical values are - 0.950,0.950. (type integers or decimals. do not round. use a comma to separate answers as needed.) since the correlation coefficient r is, there sufficient evidence to support the claim of a linear correlation.

Explanation:

Step1: Recall correlation coefficient rule

If $|r|$ is greater than the positive - critical value, there is a linear correlation.

Step2: Calculate $|r|$

Given $r = 0.989$, so $|r|=0.989$.

Step3: Compare $|r|$ with critical value

The critical values are $\pm0.950$. Since $|r| = 0.989>0.950$.

Answer:

Since the correlation coefficient $r$ is greater than the positive critical value, there is sufficient evidence to support the claim of a linear correlation.