Maintaining your balance may get harder as you grow older.A study...

Maintaining your balance may get harder as you grow older.A study was conducted to see how steady the elderly is on their feet.They had the subjects stand on a force platform and have them react to a noise.The force platform then measured how much they swayed forward and backward, and the data is in table #7.3.10 ("Maintaining balance while," 2013).Do the data show that the elderly sway more than the mean forward sway of younger people, which is 18.125 mm?Test at the 5% level.

Table #7.3.10: Forward/backward Sway (in mm) of Elderly Subjects

19

30

20

19

29

25

21

24

50

HOW DO YOU DETERMINE THE DEGREE OF FREEDOM