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Is there difference in the balance time across the practice groups?

A short study was conducted to determine if balance could be improved with practice technique. After obtaining the length of time (in minutes) a subject can balance on 1 leg on a 12 inch wooden block, subjects were randomly allocated to 4 practice groups. Each group was taught different technique to improve balance. Subjects were then timed again to determine if the balance had improved. Various covariates were also recorded at baseline. Is there difference in the balance time across the practice groups? (Use tables.)

Use the data in the 'Question_1' Excel file.

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This solution provides explanations for determining the difference in a variable across groups.

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