问题
问答题 计算题
为检查某批电子元件的质量，随机抽取1%的产品，将测得结果整理成如下表的形式：
质量标准规定：元件的耐用时间在1200小时以下为不合格品。若给定可靠度为95%，试确定：
该批电子元件的平均耐用时间。
答案
参考答案：
该批电子元件的平均耐用时间[1461，1523]，其概率保证程度为90%。
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为检查某批电子元件的质量，随机抽取1%的产品，将测得结果整理成如下表的形式：
质量标准规定：元件的耐用时间在1200小时以下为不合格品。若给定可靠度为95%，试确定：
该批电子元件的平均耐用时间。
参考答案：
该批电子元件的平均耐用时间[1461，1523]，其概率保证程度为90%。
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