A company usually sends 9 workers to install a security system in a school building, and they complete the task in 96 minutes. Today, they only have 3 workers to do the same size job. How time should be scheduled to complete the job

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?