A group of cross-country runners decided to try a new fitness program. Below are their times, in minutes, before and after the program. Is the program effective at decreasing their mean run time in a 5k? Use a significance level of a = 0.05 (assume the differences in running times are approximately normally distributed). Before After 17.4 14.0 16.1 15.1 16.0 15.7 15.3 15.8 17.1 15.2 Calculate the associated p-value. Round your answer to 4 decimal places.