A simple random sample of 5k race times for 32 competitive male runners aged 25-34 years old resulted in a mean 5k race time of 16.79 minutes.
The simple linear regression equation that fit the sample data was obtained. The regression equation was found to be ?' = 21.506 + 0.276? where ? represents the age of the runner in years and ? represents the 5k race time for a competitive male runner.
What is the best predicted 5k race time for a competitive male runner 65 years of age?
Ans:
Given that
Regression equation:
y'=21.506+0.276 x
when x=65
Predicted race time,y'=21.506+0.276*65=39.45 minutes
A simple random sample of 5k race times for 32 competitive male runners aged 25-34 years...
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