Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below:

Football Track

12.1 12.2

13.7 11.2

12.1 11.3

11.7 12.1

14.5 13.2

What is the difference of the means for the two groups?

Question

Stanley Hess

Mathematics

20 July, 10:41

Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below:

Football Track

12.1 12.2

13.7 11.2

12.1 11.3

11.7 12.1

14.5 13.2

What is the difference of the means for the two groups?

+2

Answers (1)

Know the Answer?

Harley Callahan · Answer 1

Mean (average) of the football team:

(12.1+13.7+12.1+11.7+14.5) / 5 = 12.82

Mean (average) of the track team:

(12.2+11.2+11.3+12.1+13.2) / 5 = 12

Subtract: 12.82-12 = 0.82 s

So the difference of the means for the two groups is 0.82 seconds.

Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below:Football Track12.1 12.213.7 11.212.1 11.311.7 12.114.5 13.2What is the difference of the means for the two groups?

Five members of the football team and five members of the track team ran the 100-meter dash. Their times are listed in the table below:

Football Track

12.1 12.2

13.7 11.2

12.1 11.3

11.7 12.1

14.5 13.2

What is the difference of the means for the two groups?