Answer:
0.46
Step-by-step explanation:
To find the mean, we add together all of the data points and divide by the number of data points.
For the football team, we add
12.5+13.4+12.2+11.5+14.1 = 61.4
Divide this by 5, the number of data points:
61.4/5 = 12.28
For the track team, we add
12.4+11.6+11.5+12.4+13.5 = 63.7
Divide this by 5, the number of data points:
63.7/5 = 12.74
The difference in means is
12.74-12.28 = 0.46
