Solution for problem 9CCQ Chapter 10.6
9 CQQ The exercises are based on the following sample data
Elementary Statistics | 12th Edition
?9 CQQ The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD). S y s t o l i c D i a s t o l i c If you had computed the value of the linear correlation coefficient to be 3.335, what should you conclude?
Solution 9 CQQ Answer : Step 1 : The value of correlation coefficient must lies in between -1 to 1. If the value correlation is -1, then it is negatively correlated, if it is 1 then we can say that positively correlated, if the value is o then there is no correlation. The correlation coefficient value be 3.335, we can say that there must be error in computation, the correlation value does not exceed more than one on the positive side.