Ten pairs of identical twins are recruited for a study on the effects of strength training and cardiovascular exercise on cardiovascular health. One twin in each pair engages in a 6-week strength training program, while the other engages in 6-week cardio training program. At the end of the 6 weeks, each twin is evaluated for cardiovascular health. Higher scores indicate higher levels of cardiovascular health. Use the data below to determine whether there was a significant difference between the cardiovascular health of the twins performing strength training and the twins performing cardiovascular exercise. N Mean Standard Deviation Strength Training 10 11.1 1.3703 Cardiovascular health Cardio Training 10 10 1.1547 What is the standard error of the difference scores S? Difference Scores 1.1 1.5951

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