Question

(a) Plot both men's and women's winning times on the same graph.
(b) Fit a linear trend model to each series. From the fitted trends, will the times eventually converge? Hint: Ask Excel for forecasts (e.g., 20 years ahead).
(c) Make a copy of your graph, and click each fitted trend and change it to a moving average trend type.
(d) Would a moving average be a reasonable approach to modeling these data sets?


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  • CreatedAugust 19, 2015
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