One of the events at the 2022 Winter Olympic Games was the Skeleton. In this sport, athletes slide down a 1615 m frozen track lying face down and head-first on a sled. In the competition, each athlete completes 4 separate runs called heats. The final scores are the sum of all 4 heat times. A sports science research team was interested in determining whether there is a significant mean difference in run time (seconds) between the 4 different heats. To answer this question, they recorded the run times of 15 athletes across all 4 of their competition heats. Use the data below to answer this research question at the 5% level of significance.

Athelete	Heat1 (seconds)	Heat2 (Seconds)	Heat3 (seconds)	Heat4 (seconds)
ID 1	60.369	60.072	59.992	59.873
ID 2	60.23	59.7	59.81	59.197
ID 3	60.531	60.347	59.95	59.431
ID 4	60.227	60.12	60.062	59.337
ID 5	59.901	59.432	60.044	59.781
ID 6	59.792	60.307	60.071	59.849
ID 7	59.886	59.845	60.057	60.008
ID 8	61.045	60.064	60.271	59.988
ID 9	60.633	60.278	59.445	60.334
ID 10	60.075	60.565	59.831	60.971
ID 11	60.403	60.079	60.193	60.195
ID 12	60.404	59.488	60.283	60.697
ID 13	60.452	60.064	59.647	60.263
ID 14	60.297	59.989	59.791	59.454
ID 15	59.972	60.163	59.758	60.494