DrJohnson Is Studying the Effects of Aspirin on Heart Rate

Multiple Choice

Dr.Johnson is studying the effects of aspirin on heart rate.He believes that aspirin will lower heart rate.He has 2 groups the treatment group receives 80mg of aspirin for a week (n=4) the control group received a placebo (n=4) and their heart rates are compared.Below is his data in which heart rate is beats per minute.He sets his alpha level at 0.05 and uses a directional test.
What is the strength of the relationship?

A) .75
B) .72
C) .67
D) None of these