A regression equation relating winning time and year for 1924 and 2010 is

winning time= 273.06 - 0.11865 year

a. Would the correlation between winning time and year be positive or negative? Explain.

b..In 2010, the actual winning time for the gold medal was 34.1 seconds. Use the regression equation o predict the winning time for 2010, and compare the prediction to what actually happened. Was the actual winning time higher or lower than the predicted time?

c. Explain what the slope of -0.11865 indicates in terms of how winning times change from year to year.