1. STILL MORE 9.1

2. VI. CORRELATION & CAUSATION Just because there is a strong relationship, this does NOT imply cause and effect!

3. A RESEARCHER MUST CONSIDER THE FOLLOWING POSSIBILITIES: 1.Is there a direct cause and effect relationship between the variables? 2.Is there a reverse cause and effect relationship between the variables? 3.Is it possible the relationship is caused by a 3 rd variable or combination of variables? 4.Is it possible the relationship is a coincidence?

4. V. HYPOTHESIS TESTING FOR A POPULATION CORRELATION COEFFICIENT

5. BACK TO 5 STEP HYPOTHESIS TESTING! WOOHOO! 1.State hypotheses 2.Find test statistic 3.Find critical value 4.Make a decision 5.Interpret in context

6. NOW DO PG 472 #23 WITH 5 STEPS! 1) 2) 3) 4) 5)

7. CLASS WORK TO BE TURNED IN!!! Pg 473 #27 (show all 5 steps) HOMEWORK: Pg 473 #28