3 earthquakes happened on day 15, 16, and 17. During these days, a temperature increase was observed apparently because of the earthquakes. But temperature also increases on other days. So, we don't know for sure if the temperature increase was triggered by the earthquakes or not, -maybe it was just weather. But we can calculate some confidence level or probability that the temperature increased because of the earthquake by using the information from the graph. Does anyone have any tips on how to do so?