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Maintaining your balance may get harder as you grow older. A study was conducted to see how steady the elderly are on their feet. They
Maintaining your balance may get harder as you grow older. A study was conducted to see how steady the elderly are on their feet. They had a random sample of 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 are in the table below. Do the data show that the mean elderly sway measurement is higher than the mean forward sway of younger people, which is 18.125 mm? Test at the 6% level. forward sway in mm 38 30 40 35 25 16 29 27 23 32 23 32 20 34 8 21 24 36 18A: Assumptions Since Select an answer w information was collected from each object, what conditions do we need to check? Check all that apply. On > 30 or normal population O no outliers in the data O outliers in the data On(1 - p) 2 10 Do is known Onp 2 10 ON > 20n O o is unknown On(1 - p) 2 10 On(p) 2 1018 11 51 32 20 20 34 16 P: Parameter What is the correct parameter symbol for this problem? ? v What is the wording of the parameter in the context of this problem? Select an answer V H: Hypotheses Fill in the correct null and alternative hypotheses: Ho: ? v 7v mm HA: ? Y ?Y mm
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