Game performance of water polo players. Refer to the Biology of Sport (Vol. 31, 2014) study of the physiological performance of top-level water polo players, Exercise 11.24

(p. 626). Recall that data for eight Olympic male water polo players were used to model y = mean heart rate as a straight-line function of x = maximal oxygen uptake.

Find an estimate of s, the standard deviation of the error of prediction, on the MINITAB printout (p. 626).

Give a practical interpretation of this value.