Answer items 7 and 8 from the following information: The mean for VO2max is 50 ml/kg/min...
Answer items 7 and 8 from the following information:
The mean for VO2max is 50 ml/kg/min and the standard deviation is
10 ml/kg/min. Professor Mill wants to estimate VO2max from a field
test of running a given distance for time. The coefficient of
determination for the correlation between VO2max and running time
is .84. Assume that his equation for predicting VO2max from running
time is this: VO2max' = time in minutes × (−10) + 125.
7. Calculate Terry’s estimated VO2max' if Terry’s run time is
exactly 10 minutes.
8. Calculate the error for predicting VO2max from running time.
Homework Answers
7)
estimated VO2max' =10*(-10)+125 =25
8)
here SSE =sy2*(1-r2) =10^2*(1-0.84)=16
therefore error for predicting VO2max =√SSE =√16 =4
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