ONE QUESTION, ONE STEP
ZX-901CCE2D802026年8月美国A卷 · 第 17 题
2026年8月美国A卷 · 原库模块 2 · Q17 参考答案
A researcher surveyed a random sample of 1,380 people from a certain state to estimate the percentage of people who support the governor's recent approval of a bill. From the survey, the researcher estimated that 72% of people from the state support the governor's approval of the bill, with an associated margin of error of 2.37%. The researcher repeated the survey with a random sample of people from the state that was double the original sample size. Assuming the margins of error were calculated in the same way, which of the following is true about the margin of error associated with the estimate from the larger sample?
参考答案：
解题思路
容易忽略的一步
