Nicole Xiang · 2023年08月01日
NO.PZ2018062016000111
问题如下：
Which of the following statement about two-sided confidence interval is most correct if the confidence interval become narrower?
选项：
A.
the degree of confidence is smaller.
B.
the degree of confidence is larger.
C.
sampling size is smaller.
解释：
A is correct.
If the degree of confidence is smaller, the confidence interval become narrower.
如果置信度较小，则置信区间变窄。
two sides confidence internal 怎么理解呢？
two side confidence internal narrow,那么对应中间的confidence internal是不是变宽，变大呢？
NO.PZ2018062016000111问题如下Whiof the following statement about two-siconfinintervis most correif the confinintervbecome narrower?A.the gree of confinis smaller.B.the gree of confinis larger.C.sampling size is smaller. A is correct.If the gree of confinis smaller, the confinintervbecome narrower.如果置信度较小，则置信区间变窄。 那不是应该一个变大 一个变小吗？
the gree of confinis larger. sampling size is smaller. A is correct. If the gree of confinis smaller, the confinintervbecome narrower. 老师，还是没懂置信区间和置信度是什么关系
请问 gree of confin和ｃｏｎｆｉｄｅｎｃｅ ｌｅｖｅｌ 是一个东西么。那ｄｅｇｒｅｅ ｏｆ ｓｉｇｎｉｆｉｃａｎｃｅ呢
老师，想问一下这道题的B为什么不对？ 我记得课上是说“n越大，wih of confinlevel越窄”，这道题的b说的不是n变大的意思吗？ 谢谢！
