Statistical tests | Analysis of variance
In statistics, Bartlett's test, named after Maurice Stevenson Bartlett, is used to test homoscedasticity, that is, if multiple samples are from populations with equal variances. Some statistical tests, such as the analysis of variance, assume that variances are equal across groups or samples, which can be verified with Bartlett's test. In a Bartlett test, we construct the null and alternative hypothesis. For this purpose several test procedures have been devised. The test procedure due to M.S.E (Mean Square Error/Estimator) Bartlett test is represented here. This test procedure is based on the statistic whose sampling distribution is approximately a Chi-Square distribution with (k − 1) degrees of freedom, where k is the number of random samples, which may vary in size and are each drawn from independent normal distributions.Bartlett's test is sensitive to departures from normality. That is, if the samples come from non-normal distributions, then Bartlett's test may simply be testing for non-normality. Levene's test and the Brown–Forsythe test are alternatives to the Bartlett test that are less sensitive to departures from normality. (Wikipedia).
Linear regression is used to compare sets or pairs of numerical data points. We use it to find a correlation between variables.
From playlist Learning medical statistics with python and Jupyter notebooks
Statistics Lecture 3.3: Finding the Standard Deviation of a Data Set
https://www.patreon.com/ProfessorLeonard Statistics Lecture 3.3: Finding the Standard Deviation of a Data Set
From playlist Statistics (Full Length Videos)
Statistics Lecture 5.2: A Study of Probability Distributions, Mean, and Standard Deviation
https://www.patreon.com/ProfessorLeonard Statistics Lecture 5.2: A Study of Probability Distributions, Mean, and Standard Deviation
From playlist Statistics (Full Length Videos)
Statistics Lecture 8.2: An Introduction to Hypothesis Testing
https://www.patreon.com/ProfessorLeonard Statistics Lecture 8.2: An Introduction to Hypothesis Testing
From playlist Statistics (Full Length Videos)
Calculus, Comparison Test (LCT), 11 4 #7
Calculus, Algebra and more at www.blackpenredpen.com Differential equation, factoring, linear equation, quadratic equation, derivatives, integrals, stewart calculus 7th edition, algebra.
From playlist Calculus, Sect 11.4, Direct & Limit Comparison Test
#26. What type of tailed test should be performed?
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys #26. What type of tailed test should be performed?
From playlist Statistics Final Exam
In this video I show you how to conduct a t-test, analysis of variance, and linear regression in SPSS.
From playlist Healthcare statistics with SPSS
Jamovi 1.8/2.0 Tutorial: Moretests Add-On Module (Episode 44)
In this Jamovi tutorial, I discuss an add-on module that simply adds a couple for statistical tests for t-tests and ANOVAs. They are assumption tests: Komolgorov-Smirnov, Anderson, and Bartlett's tests Jamovi stats: https://www.jamovi.org/ NOTE: This tutorial uses the current build of Ja
From playlist Jamovi Tutorials
Education: Why ‘energy vampires’ must be slain | Kevin Bartlett | Big Think
Education: Why ‘energy vampires’ must be slain Watch the newest video from Big Think: https://bigth.ink/NewVideo Learn skills from the world's top minds at Big Think Edge: https://bigth.ink/Edge ---------------------------------------------------------------------------------- There are
From playlist Future of learning | Big Think
Data that are collected for statistical analysis can be classified according to their type. It is important to know what data type we are dealing with as this determines the type of statistical test to use.
From playlist Learning medical statistics with python and Jupyter notebooks
ANOVA in RStudio Part 1 | Visualization, Normality Assumption, Homogeneity of Variance
In these two installments, I demonstrate how to run an #ANOVA test in #RStudio. Specifically, in the first video, I will discuss: 1 Data visualization 2 Assumption 1. Normality (of residuals) 3 Assumption 2. Homogeneity of variances: Levene's test; Bartlett's test In the second video,
From playlist Repeated Measures ANOVA
Rainer von Sachs: Time-frequency analysis of locally stationary Hawkes processes
Abstract : In this talk we address generalisation of stationary Hawkes processes in order to allow for a time-evolutive second-order analysis. A formal derivation of a time-frequency analysis via a time-varying Bartlett spectrum is given by introduction of the new class of locally stationa
From playlist Probability and Statistics
R - Exploratory Factor Analysis Lecture 1
Lecture materials and assignment available at statisticsofdoom.com. https://statisticsofdoom.com/page/graduate-statistics/ Used in the following courses: Graduate Statistics
From playlist Advanced Statistics Videos
RARE FILM: Early Wireless Radio in ALASKA 1950 Signal Corps. Telegraphy History
Today's film is a unique vintage technology documentary about ALASKA's Historic Wireless Communications Network: A rare original 1950 kinescope* documentary on the 50th Anniversary of the Alaska Communications System (ACS), the massive communications network constructed by the U.S. Army S
From playlist Vintage Television & Radio Technology, film restoration, film preservation, scanning and digitization
[to] Greenland's Icy Mountains No. 4 (1932)
Full title reads: "Now we continue our trip to Greenland's Icy Mountains No. 4" Introductory intertitle reads: "Along with bluff old Capt. Bartlett (who accompanied Peary to the Pole), we reach Greenland's coast and meet the hardy Eskimos." Shots from on board the schooner Morris
From playlist Amazing Explorers
7. Nucleophilic Substitution Tools - Stereochemistry, Rate Law, Substrate, Nucleophile
Freshman Organic Chemistry II (CHEM 125B) SN2 substitution provides an example of establishing the mechanism of a chemical reaction by disproving all the alternatives. Five general pathways are envisioned (two-step involving either pentavalent or trivalent carbon intermediates, and one
From playlist Freshman Organic Chemistry II with Michael McBride
Ask Adam Savage: How Annoying Are Films That Change a City's Geography?
What are some props from sequels where Adam is a fan of one version but not another? What are some of Adam's favorite films set in San Francisco? How does Adam feel about films that change the geography of a city? Adam answers these questions from Tested members james saunders, DFriendly a
From playlist Adam Savage's Live Streams
What is a hypothesis test? The meaning of the null and alternate hypothesis, with examples. Overview of test statistics and confidence levels.
From playlist Hypothesis Tests and Critical Values
Understanding the inductive bias due to dropout - Raman Arora
Workshop on Theory of Deep Learning: Where next? Topic: Understanding the inductive bias due to dropout Speaker: Raman Arora Affiliation: Johns Hopkins University; Member, School of Mathematics Date: October 17, 2019 For more video please visit http://video.ias.edu
From playlist Mathematics
Parametric and nonparametric tests
Parametric tests are most commonly used in healthcare research. They include tests such as Student's t-test and ANOVA. There is, however a rich set of non-parametric tests that are much more appropriate to use in certain circumstances.
From playlist Learning medical statistics with python and Jupyter notebooks