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2026年3月国际C卷 · 第 10 题

2026年3月国际C卷 · 原库模块 2 · Q10 原库参考解析

An inspector checked a sample of 370 scales selected at random from a population of 8,000 scales to estimate what percentage of the 8,000 scales were inaccurate. From this sample, the inspector estimated that 9% of the 8,000 scales were inaccurate, with an associated margin of error of 2.9%. Which of the following is the most appropriate conclusion?
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