How many more hours would it take a train traveling at an average rate of 60 miles per hour to cover a distance of 80 miles than it would for a train traveling at a rate of 75 miles per hour?
1.33
0.80
1.06
0.27

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?