The article Masters Performance in the New York City Marathon(British Journal of Sports Medicine [ 2004]: 408
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a. Find the equation of the least squares regression line that describes the relationship between average finish time (y) and representative age (x).
b. Compute the six residuals and construct a residual plot. The authors of the paper decided to use a curve rather than a straight line to describe the relationship between average finish time and representative age. What aspect of the residual plot supports this decision?
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a y 227969 0105 x where y is the predicted average fi...View the full answer
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