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Produce a power coefficient

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Reference no: EM132464155

An aerobic dance teacher wanted to know whether two workouts per week of 30 minutes each were enough to increase VO2max in sedentary middle- aged women.  The teacher proposed to compare VO2max of some women who had been in the aerobic dance classes for 6 months with VO2max of a group of sedentary women.  Based on related literature, the teacher estimated that VO2max would be about 7 milliliters per kilogram per minute higher in the aerobic dancers, with a standard deviation of 4.5.  If this is a fair estimate of the data to be expected, how many women must she test in each group to produce a power coefficient of .90 at α=.05?

Reference no: EM132464155

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