“Uma loja de roupas vende calças femininas e masculinas, onde as calças masculinas são vendidas a R$100,00 e as femininas a R$ 180,00. Sabe-se que em um determinado dia a soma das quantidades dos dois tipos de calças vendidas foi igual 125 e a soma do dobro de calças femininas com o triplo de calças masculinas foi 290.” Quantas peças masculinas foram vendidas

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?