need only #2 done
Chapter 9 Problems to Solve
The same 24 subjects who performed the tests summarized in table 9.1 performed an additional
isokinetic test of isokinetic knee flexion at 300° per second. Their scores are summarized in the
following table.
Use statistical software to perform a hierarchical multiple regression analysis where isokinetic
torque is the dependent variable and the independent variables age, fat-free weight, and height are
entered in this order.
From J. P. Weir and W. J. Vincent, Statistics in Kinesiology Instructor Guide, 5th ed. (Champaign, IL: Human Kinetics, 2021).
1. Report results at each step, including slope coefficients (with proper units), squared multiple
correlation coefficient (R2), and standard error of the estimate.
2. Calculate the 95% CI for the slope coefficients.
3. Repeat the analysis while reversing the order of entry between age and fat-free weight. How
does reversing the order of entry affect the equation and interpretation of the data?
From J. P. Weir and W. J. Vincent, Statistics in Kinesiology Instructor Guide, 5th ed. (Champaign, IL: Human Kinetics, 2021).
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