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momo · 2023年08月11日

课后题

NO.PZ2023061301000005

问题如下:

Compared with bootstrap resampling, jackknife resampling:

选项:

A.

is done with replacement.

B.

usually requires that the number of repetitions is equal to the sample size.

C.

produces dissimilar results for every run because resamples are randomly

drawn.

解释:

B is correct. For a sample of size n, jackknife resampling usually requires n repetitions.

In contrast, with bootstrap resampling, we are left to determine how many

repetitions are appropriate.

c为什么不对。。。。

1 个答案

星星_品职助教 · 2023年08月12日

同学你好,

 jackknife的方法是一次切一个,不是random drawn。且由于每次的样本差别不大,给出的也是similar results。

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