Below are the winning times in the men's 10,000 m track event in the Olympic Games for the years 198 ...

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Below are the winning times in the men's 10,000 m track event in the Olympic Games for the years 1984, 1988, 1992, 1996, and 2000. Times are in decimal form (for example, 28.4 = 28 minutes and 24 seconds): 27.8, 27.4, 27.8, 27.1, 27.3. Let the years be the x values and the times the y values. (a) Find the estimated regression line. (b) Predict the winning time in the Olympic year 2088.