For a data set of brain volumes (cm3) and IQ scores of ten males, the linear cor

Question

For a data set of brain volumes (cm3) and IQ scores of ten males, the linear correlation coefficient is 0.852. 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 Table of Critical Values of r (Type integers or decimals. Do not round. Use a comma to separate answe Number of Pairs of Datarn 4 Critical Value of r 0.950 0.878 0.811 0.754 0.707 0.666 0.632 0.602 0.576 7 Enter your answer in the answer box and then click Check Answer 10 part remaining Clear 12

Explanation / Answer

(a)

Number of Pairs of Data = n = 10

So,

From Table, Critical value of r = 0.632

(b)

Since the correlation coefficient r is in the right tail above the positive critical value , there is sufficient evidence to support the claim of a linear correlation.

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