Reference no: EM131157503
Van Schuylenbergh et al. (Eur J Applied Phys 91:94-99) published a study in 2004 using physiological and anthropometric measurements as independent variables to predict triathlon performance (expressed in minutes). Ten triathletes underwent extensive physiological testing in swimming, cycling and running. Within 2 weeks after the last lab test, all subjects competed in the National University Triathlon Championship. The final regression model was:
TP = 130 - 9.2(MLSSR) - 25.9(MLSSS) + 1.4(BLCR)
TP = triathlon performance (minutes)
MLSSR = running speed (meters/sec)
MLSSS = swimming speed (meters/sec)
BLCR = blood lactate concentration at running MLSS
For the model R2 = 0.98.
a. Which is the dependent variable?
b. Which are the independent variables?
c. What null hypotheses on coefficients would you think were rejected? Why?
d. Explain the coefficient of multiple determination in words.
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