With a margin of error of 5% and a 95% confidence interval, a recent poll claims that 47% of americans support the president's policy on afghanistan. the next week, the poll shows support is now 51%. has there been a shift in american support for the president's policy on afghanistan? explain.

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?