Why do we use the Greek letter μ (Mu) to denote population …
Oct 17, 2019 · According to this Wikipedia entry, "Mu was derived from the Egyptian hieroglyphic symbol for water, which had been simplified by the Phoenicians and named after their word for …
statistics - Population mean and expected value = µ?
Dec 27, 2014 · In terms of notation, we usually denote a population mean with $\mu$, and a sample mean with $\bar{x}$. The expected value is the population mean. See the Wikipedia …
Why does the Null Hypothesis have to be "equals to" and not …
Oct 30, 2016 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
ε vs u as the error term in regression - Cross Validated
May 31, 2017 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
If I use the wilcox.test from R for paired data, what exactly it ...
Sep 1, 2021 · coin::wilcoxsign_test(Result ~ Timepoint | PatientId, data=d, zero.method = "Wilcoxon") Asymptotic Wilcoxon Signed-Rank Test data: y by x (pos, neg) stratified by block …
notation - What does := mean? - Mathematics Stack Exchange
Mar 18, 2011 · $\begingroup$ I was aware of Pascal using :=, but not the others.I think it is possible that the language designers of that time where influenced by maths (as has …
Proof of Inversion Theorem for Characteristic Functions
Oct 8, 2017 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Why are positive and negative variations (positive) measures?
Nov 14, 2018 · According to Rudin's textbook, if $\mu$ is a signed measure , we define $$\mu^+ = \frac{1}{2}(|\mu|+\mu)$$ and $$\mu^-=\frac{1}{2}(|\mu|-\mu).$$ (the positive and ...
Is there a symbol for the median of a population?
Mar 31, 2017 · Furthermore, R language uses mu as a parameter for some statistical test Indistinctly for mean or median. $\endgroup$ – hector Commented Mar 31, 2017 at 17:00
Questions on Möbius function - Mathematics Stack Exchange
My copy of Hall is at the office, but I remembered the paper I was reading and it appears to be perfect for getting started with Möbius functions on groups (especially with regards to getting …