What information is provided by the sign or

Statistics

What information is provided by the sign (= or -) of the Pearson correlation?

What information is provided by numerical value of the Pearson correlation?

What is the major distinction between the Pearson and Spearman correlations?

A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n=15 college students. The students scores have a mean of m=580 with SS=22,400, and the GPAs have a mean of 3.10 with SS=1.26, and SP=84.

a. Find regression equation for predicting GPA from SAT scores.

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