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 #8.3.11 ("Maintaining balance while," 2013). Find a 99% confidence interval for the mean sway of elderly people.

S statsi X GGU BS in X RCS X RCS RCS X C A Gra X 'Hom Majo Statis X C Main X C Cheg X I+ X C learn.maricopa.edu/courses/1217759/assignments/12303994 ABP G MAT 206 MjHW #4 Spring 2022.pdf & Download i Info X Close Page 3 of 6 ZOOM + 5. Complete # 8 on p279 in the text. Note : because of the small sample size of 9 We Need to assume that the sway of elderly is Normally distributed. Use your T.I. calculator. Identify a the random variable X = 6 . the parameter, u = C. M =. d. x = / = e. degrees of freedom, d.f. = f. Sy = Sx = VM g. to = Appendix Table A. 2. h. 99 Confidence Interval = ( 80OF a 9:17 PM Mostly clear O W 5/3/2022 2C H 3'? " e F'-: a: ' 6 F" C' C:/Users/genis/Downloads/Chapter%208%20Estimation%20(2).pdf Statistics Using Technologypdf 17 / 20 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 #8311 ("Maintaining balance while, " 2013). Find a 99% condence interval for the mean sway of elderly people. Table #8.3.11: Forward/backward Sway (mm) of Elderly Sub'ects 19 30 20 19 29 25 21 24 50