有無人可以簡單講咩係P-Value?

多謝巴打, 個channel解釋得好清楚

巴打有料到, 同呢條講嘅差不多
https://youtu.be/PPD8lER8ju4

呢個post已經sample到幾多人誤解p-value

弱智以為連登係打電話問功課？
仲要問咁撚易既野 lecture notes睇十分鐘都答曬你疑問啦

你咁勁不如解釋吓

p-value =
The probability that the a sample which is more extreme than the tested sample is drawn
under 1. the null hypothesis
and 2. normal distribution hypothesis with given population variance.

好似話依個係成日比人誤解、誤用既stat概念之一
即使係專業人士都會被誤用
利申: 唔識

本身個因果邏輯就好奇怪
被人ban9係有原因既

連大學教授都好難簡單咁解釋, 本身概念已經抽像

This is one of the ways to explain P-Value. Since we assume that u=specified number and expected the sample mean should fall into, let say 99%. That 1% is the extreme value which is too far away from population mean.
If the sample mean is within this 1%, we will have sufficient evidence to say that u is not the specified number.
The concept is aligned with confidence interval. For instance, we have 99% confidence that the population mean will fall into this range but the true mean is not. We are skeptical that the mean is not what we assumed.

咪就咁 P(getting the sample result given that null is true)

佢大嘅話 你咪信住個null係啱先囉
佢細嘅話 你咪唔好信囉

點為之大同細 就係你個level of significant
所以你先至會用p value嚟同佢嚟做比較