在线词典
在线词典，是一款在线使用的中英文查词词典。本工具支持查询英文和中文单词及词组的含义，查询效率高、结果丰富，包括单词变体、常用短语、英英释义、同义词、同根词、词语辨析等，是外语学习者必备的在线查词工具。
输入要查询的单词：
sign-test
美：
[saɪn test]查词链接：https://www.dute.org/dict/sign_test复制链接 符号检验：一种非参数统计方法，用于检验两个相关样本之间的差异是否显著。
查看英英释义
abstract:
In statistics, the sign test can be used to test the hypothesis that there is "no difference in medians" between the continuous distributions of two random variables X and Y, in the situation when we can draw paired samples from X and Y. It is a non-parametric test which makes very few assumptions about the nature of the distributions under test - this means that it has very general applicability but may lack the statistical power of other tests such as the paired-samples t-test or the Wilcoxon signed-rank test.
网络释义
符号检验
符号检验
常用短语
更多常用短语正在查询...
{error}
你是不是想查找：
- {typos}
{word}
{phones} {trans} {trans_ee} {exam_types}{web_trans} {variants} {phrases} {synonyms} {rels} {discriminations} 查词链接：
{link}复制链接{phones}
{text}：[{value}]{trans}
{trans}
{pos}
{tran}
{tran}
查看英英释义
{trans}
{pos}
{list} {tran}
{words}{word}同义词： {words}
{pos}
{words}
{exam_types}
单词变体
- {variants}
常用短语
- {phrases}
网络释义
{web_trans}
{tran}
{detail}
近义词
{synonyms}
{pos} {tran}
{words}
同根词
{rels}
{pos}
{words}
{word}{tran}
词语辨析
{discriminations}
{num}、{title}
{description}- {usages}
{description}