Answer my other question that I posted and I promise that if I get it right I will mark you as the best answer ever and when you are done answering my question type yes here

The question that I want you to answer is this (thanks)

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?