If you were correlating age and physical activity, for which group would the correlation between age and physical activity be the strongest correlation?           Group A                                                                   Group B

Body Mass Index was converted to z-scores.  From the output below is there evidence of outliers? An outlier is more than 3 standard deviations from the mean.

Optional Extra Credit 1.  No penalty for trying. Describe what the central limit theorem is and why it is important.

What type of hypothesis is the following: VO2 Max is related to Running speed.

In the table below explain what the p values at the bottom of the table are telling you.

What is the difference between a correlation between 2 variables and the covariance between 2 variables?

What should behavior analysts do if they realize a conflict of interest in their practice?

Define what is a confounding variable.

What effect will increasing the sample size have on statistical power?

Describe what is a stratified random sample. Provide an example.