For #10 - 19: A researcher conducts an Independent-Measures study examining the effectiveness of a group exercise program on muscle strength at an assisted living facility for elderly adults. One group of residents is selected to participate in the new weight training program and a second group participates in a fitness walking group. After 8 weeks, the researcher records a strength score for each individual. The data are as follows: Walking Strength Group n = 14 Group n = 28 Here are some formulas and values to help: Pooled Variance (s²,) = 14 Sp + s? S(M,-M2) М 3 15 Мa 3 12 n, t = M1 - M2 /s (M1-M2) 13. How many df do you have?

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