August hosted two dinner parties for his friends. twenty guests attended the first party, and twenty-six guests attended the second party. what is the percentage increase of the number of guests from the first party to the second party?

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?