Sampling ERROR and Squishy Measurements (12-8)
Sampling error is the difference between a sample statistic and its corresponding population parameter due to weaknesses in the randomness of sampling. Non-sampling error is the difference between a sample statistic and its corresponding population parameter due other factors. It may be ca
From playlist Sampling Distributions in Statistics (WK 12 - QBA 237)
This lesson introduces the different sample methods when conducting a poll or survey. Site: http://mathispower4u.com
From playlist Introduction to Statistics
Standard Error of the Mean: Let’s Talk About SEx (12-1)
The Standard error of the mean is the average variability between the sample mean and the population mean that is reasonable to expect simply by chance. It is to the Distribution of Sample Means what the standard deviation is to a single mean of a sample. As sample size increases, the stan
From playlist Sampling Distributions in Statistics (WK 12 - QBA 237)
Statistics: Ch 7 Sample Variability (11 of 14) What is "The Standard Error of the Mean"?
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 What is “the standard error of the mean”? It is the standard deviation (of the sampling distribution) of the sample means. Previous
From playlist STATISTICS CH 7 SAMPLE VARIABILILTY
What is a Sampling Distribution?
Intro to sampling distributions. What is a sampling distribution? What is the mean of the sampling distribution of the mean? Check out my e-book, Sampling in Statistics, which covers everything you need to know to find samples with more than 20 different techniques: https://prof-essa.creat
From playlist Probability Distributions
Comparison of systematic and random error. Types of systematic error, including offset error and scale factor error/
From playlist Experimental Design
Random and systematic error explained: from fizzics.org
In scientific experiments and measurement it is almost never possible to be absolutely accurate. We tend to make two types of error, these are either random or systematic. The video uses examples to explain the difference and the first steps you might take to reduce them. Notes to support
From playlist Units of measurement
Sampling Distribution of the PROPORTION: Friends of P (12-2)
The sampling distribution of the proportion is the probability distribution of all possible values of the sample proportions. It is analogous to the Distribution of Sample Means. When the sample size is large enough, the sampling distribution of the proportion can be approximated by a norm
From playlist Sampling Distributions in Statistics (WK 12 - QBA 237)
This lesson reviews sources of bias when conducting a survey or poll. Site: http://mathispower4u.com
From playlist Introduction to Statistics
I recently uploaded 200 videos that are much more concise with excellent graphics. Click the link in the upper right-hand corner of this video. It will take you to my youtube channel where videos are arranged in playlists. In this older video: understanding Power and Type II Error and be
From playlist Older Statistics Videos and Other Math Videos
0:15 - Review 2:29 - Learning objectives 2:48 - 1. Construct and interpret sampling distributions using StatKey 3:36 - StatKey 10:42 - Review of terms 12:12 - 2. Explain the general form of a confidence interval 16:59 - 3. Interpret a confidence interval 23:47 - 4. Explain the
From playlist STAT 200 Video Lectures
Excel Statistical Analysis 37: Learn Central Limit Theorem by Building Sampling Distribution of Xbar
Download Excel File: https://excelisfun.net/files/Ch07-ESA.xlsm PDF notes file: https://excelisfun.net/files/Ch07-ESA.pdf Learn about one of the most power rules in statistics: the Central Limit Theorem by building a Sampling Distribution of Sample Means (Xbar). Learn how to calculate the
From playlist Excel Statistical Analysis for Business Class Playlist of Videos from excelisfun
The Standard Error of the Mean for Sampling in Business Statistics (Week 12A)
The standard error of the mean measures the average amount of variability between the sample mean and the population mean that is reasonable to expect simply by chance. Using Excel, we demonstrate how a sample size of 30 or more minimizes the standard error. We wrap up using the ICU datase
From playlist Basic Business Statistics (QBA 237 - Missouri State University)
Guinness, Student, and the History of t Tests (10-1)
We concluded our lesson on z tests with the sad realization that z tests rarely get used in the real world. Instead of using a z test we compare samples to populations using a t test. William Sealy Gosset, a master brewer and a scientist at the Guinness brewery in Dublin, Ireland solved th
From playlist WK10 One Sample t Tests - Online Statistics for the Flipped Classroom
Chapter 7.2: Estimating a Population Mean and Sample Size (sigma known)
Chapter 7.2 from "Introduction to Statistics, Think & Do" by Scott Stevens (http://www.StevensStats.com) Textbook from Publisher, $29.95 print, $9.95 PDF http://www.centerofmathematics.com/wwcomstore/index.php/thinkdov4-1.html Textbook from Amazon: https://amzn.to/2zJRCjL
From playlist Statistics Lecture Videos
Recent advances in high dimensional robust statistics - Daniel Kane
Computer Science/Discrete Mathematics Seminar I Topic: Recent advances in high dimensional robust statistics Speaker: Daniel Kane, University of California, San Diego Date: December 11, 2017 For more videos, please visit http://video.ias.edu
From playlist Mathematics
8. Sampling and Standard Error
MIT 6.0002 Introduction to Computational Thinking and Data Science, Fall 2016 View the complete course: http://ocw.mit.edu/6-0002F16 Instructor: John Guttag Prof. Guttag discusses sampling and how to approach and analyze real data. License: Creative Commons BY-NC-SA More information at h
From playlist MIT 6.0002 Introduction to Computational Thinking and Data Science, Fall 2016
Chapter 7.3: Estimating a Population Proportion and Sample Size
Chapter 7.3 from "Introduction to Statistics, Think & Do" by Scott Stevens (http://www.StevensStats.com) Textbook from Publisher, $29.95 print, $9.95 PDF http://www.centerofmathematics.com/wwcomstore/index.php/thinkdov4-1.html Textbook from Amazon: https://amzn.to/2zJRCjL
From playlist Statistics Lecture Videos
Uncertainty propagation b: Sample estimates
(C) 2012-2013 David Liao (lookatphysics.com) CC-BY-SA Standard deviation vs. sample standard deviation Mean vs. sample mean Standard deviation of the mean vs. standard error of the mean Rule of thumb for thinking about whether error bars overlap
From playlist Probability, statistics, and stochastic processes
Sampling Distributions of Means
This is an old video. See StatsMrR.com for access to hundreds of 1-3 minute, well-produced videos for learning Statistics. In this older video: Understanding and working with sampling distributions of means. Calculating the mean and standard deviation and the probability associated with
From playlist Older Statistics Videos and Other Math Videos