Consider the 5k times for the 160 runners who participated
in the run on centennial campus, January 1, 2004.
1) Obtain the least squares quadratic regression of pace
on age, disregarding gender:
yhat = ________ + _______ * age + _________* age*age
2) Consider the population of runners aged 37. Report the following
2a) the estimated mean pace of this age 37 population
2b) the standard error of your estimate
2c) a 90% confidence interval for this population
(See documentation
for specifics on using the OUTPUT statement in PROC REG to
help with this task.
3) Produce a scatterplot like the one in the notes with
the added estimated quadratic regression curve.
(See annotations in resrun2004.sas )
4) Using SAS/INSIGHT, use the scroll bar to consider regression functions
that are polynomials of age to various degrees.