Test Statistic Formula Correlation Coefficient. The correlation coefficient. The test statistic t has the same sign as the correlation coefficient r.
The formula for the test statistic is t r n 2 1 r2 t r n 2 1 r 2. If there is no relationship then r 0. The p value is the combined area in both tails.
The following values of r indicate the direction and strength of the association.
The formula for the test statistic is. The following values of r indicate the direction and strength of the association. The output is given as the pearson correlation coefficient r which is a value ranging from 1 to 1 to indicate the strength of the association. The p text value is the combined area in both tails.
