设<img src="https://zk.995w.com/lqwvjeImg/d2/d263bf14981a16070b3eda445593c2df.png" style="font-size: 14px;" >已知,若样本容量<img src="https://zk.995w.com/lqwvjeImg/59/5913bfc063c3685bbded5c7e1df9ccc7.png" style="width: 13px; height: 14px;" >和置信度<img src="https://zk.995w.com/lqwvjeImg/e0/e0fad159c456ad2f0fd86b05a8f335ae.png" style="width: 34px; height: 18px;" >均不变,则对于不同的样本观测值,<img src="https://zk.995w.com/lqwvjeImg/80/809397aeee96f6dbc8813ef60a64f0d7.png" style="width: 16px; height: 17px;" >的置信区间长度保持不变。<br>·正确<br>·错误