Example 5 Ð Independent Samples
n The researcher in Example 4 decided to replicate her results by conducting a second study. However, before the run, 3 runners dropped out of the control group and 2 joined the experimental group.  The researcher decided to conduct her study anyway. Determine if the groups significantly differ Ð i.e. was stretching effective and reduced quad strains and medication.
0
0
1
14
0
12
0
11
1
13
2
0
12
0
14
1
0
14
Stretch X2
No Stretch X1