Correlation and Regression

Hmm, Jody;

If you mean that the Correlation disagrees with the Regression analysis, I think you must have made a mistake somewhere.

If one has 2 columns of data in Minitab and performs Correlation (Stat => BasStat=>Corr) and Regression (Stat=> Regr=>Regr) one will get the same p-value (because essentially the same H0-analysis is done). And also the square of the Correlation value (r*r) will be equal to R-sq from the Regression.

It is possible that you know from Expertise that there is no (known physical) reason for Cause and Effect Relation  and that the Correlation Analysis shows different, but that is something ELSE.
Apparantly the data shows a relation anyway. Now you 'only' have to find out why (sometimes it's your data collection plan; sometimes it happened because of special purposes and sometimes it only looks that way (often your sample is too small)).
And sometimes you get a new insight; the theoretical expertise was wrong in this situation (most often because one of the assumptions was wrong).

How many datapoints (2 datapoints show always a strong correlation)?
What are the Minitab outputs?

Remi