Question

When the correlation coefficient for a critical process parameter is -0.95, we conclude that. a. An increase in CPP leads to an increase in process output b. An increase in CPP leads to a decrease in the process output c. There is little or no relationship between CPP and process output d. The process is not capable of producing this device

Answer 1

The correct choice is b.

b. An increase in CPP leads to a decrease in the process output

Correlation coefficient measure the linear relationship between the two variables.

If it is negative and close to -1 then there is strong negative relation between the two variables.

Here the correlation coefficient is -0.95 which is close to -1. so there is strong relation between the two variable and it is

negative. That is if one variable increase the other decrease and vice versa.