The authors of the paper Ultrasound Techniques Applied to Body Fat Measurement in Male and Female Athletes

The authors of the paper €œUltrasound Techniques Applied to Body Fat Measurement in Male and Female Athletes€ (Journal of Athletic Training [2009]: 142€“147) compared two different methods for measuring body fat percentage. One method uses ultrasound and the other method uses X-ray technology. The accompanying table gives body fat percentages for 16 athletes using each of these methods (a subset of the data given in a graph that appeared in the paper). For purposes of this exercise, you can assume that the 16 athletes who participated in this study are representative of the population of athletes. Do these data provide convincing evidence that the mean body fat percentage measurement differs for the two methods? Test the appropriate hypotheses using α = 0.05.

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