Statistical intervals | Statistical approximations
In statistics, a binomial proportion confidence interval is a confidence interval for the probability of success calculated from the outcome of a series of success–failure experiments (Bernoulli trials). In other words, a binomial proportion confidence interval is an interval estimate of a success probability p when only the number of experiments n and the number of successes nS are known. There are several formulas for a binomial confidence interval, but all of them rely on the assumption of a binomial distribution. In general, a binomial distribution applies when an experiment is repeated a fixed number of times, each trial of the experiment has two possible outcomes (success and failure), the probability of success is the same for each trial, and the trials are statistically independent. Because the binomial distribution is a discrete probability distribution (i.e., not continuous) and difficult to calculate for large numbers of trials, a variety of approximations are used to calculate this confidence interval, all with their own tradeoffs in accuracy and computational intensity. A simple example of a binomial distribution is the set of various possible outcomes, and their probabilities, for the number of heads observed when a coin is flipped ten times. The observed binomial proportion is the fraction of the flips that turn out to be heads. Given this observed proportion, the confidence interval for the true probability of the coin landing on heads is a range of possible proportions, which may or may not contain the true proportion. A 95% confidence interval for the proportion, for instance, will contain the true proportion 95% of the times that the procedure for constructing the confidence interval is employed. (Wikipedia).
Lesson: Calculate a Confidence Interval for a Population Proportion
This lesson explains how to calculator a confidence interval for a population proportion.
From playlist Confidence Intervals
95 Percent Confidence Intervals (Part 3 of Intro to Statistics)
The 95% CI explained with survey examples. How to calculate the 95 percent confidence interval for binomial proportions. 00:00 Intro 00:25 What is a 95% Confidence Interval? 01:35 Example of a binomial response 04:16 Calculating a 95% CI for a Binomial Proportion 07:34 Example of Type I
From playlist Intro to Statistics
Calculate a Confidence Interval for a Population Proportion (Basic)
This example explains how to calculator a confidence interval for a population proportion.
From playlist Confidence Intervals
Z Interval [Confidence Interval] for a Proportion
Calculating, understanding, and interpreting a Z Interval [confidence interval] for an unknown population proportion
From playlist Unit 8: Hypothesis Tests & Confidence Intervals for Single Means & for Single Proportions
How to find a confidence interval for a proportion
How to find a confidence interval for a proportion using a z-table.
From playlist Hypothesis Tests and Critical Values
Calculate a Confidence Interval for a Population Proportion (Plus Four Method)
This lesson explains how to calculator a confidence interval for a population proportion using the Plus Four Method.
From playlist Confidence Intervals
Statistics Lecture 7.2 Part 7: Finding Confidence Intervals for the Population Proportion
From playlist Statistics Playlist 1
Lect.9B: Confidence Interval For One Proportion Lecture 9
Lecture with Per B. Brockhoff. Lecture 9. Chapters: 00:00 - Confidence Interval For Proportions; 03:45 - Example 1;
From playlist DTU: Introduction to Statistics | CosmoLearning.org
How to do a Binomial Test with Proportions in JASP - Hypothesis Testing for Business Statistics
Dr. Daniel demonstrates the Binomial Test, which we can use instead of a proportion test in JASP. We learn why we might use a binomial test instead of a proportion test. The, using the proportions in our Food Delivery dataset, we conduct a Binomial test, establish the null and alternative
From playlist Basic Business Statistics (QBA 237 - Missouri State University)
Chapter 7.5: A Summary and Some Loose Ends
Chapter 7.5 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
2 Proportions Pooled Hypothesis z-test & Confidence Intervals
I introduce how to compare 2 sample proportions through the use of z-tests and confidence intervals. I finish with a 2 Sample Pooled z-test. EXAMPLES AT 11:09 21:28 I have added annotations to improve some of the language of my example. Defining the variables Pm: Population proportion of
From playlist AP Statistics
Statistics 5_1 Confidence Intervals
In this lecture explain the meaning of a confidence interval and look at the equation to calculate it.
From playlist Medical Statistics
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
Excel Statistical Analysis 42: Confidence Interval for Proportions (Binomial Experiments)
Download Excel File: https://excelisfun.net/files/Ch08-ESA.xlsm PDF notes file: https://excelisfun.net/files/Ch08-ESA.pdf Learn about how to build Confidence Interval for Proportions using Excel Formulas. Topics: 1. (00:00) Introduction 2. (00:20) Confidence Internals for Proportions theo
From playlist Excel Statistical Analysis for Business Class Playlist of Videos from excelisfun
Finding The Confidence Interval of a Population Proportion Using The Normal Distribution
This statistics video tutorial explains how to find the confidence interval of a population proportion using the normal distribution. It also explains how to calculate the margin of error also known as the error bound for the true proportion. it discusses how to calculate the sample size
From playlist Statistics
Excel Statistics 85: Confidence Intervals for Proportions #1
Download Excel File: https://people.highline.edu/mgirvin/AllClasses/210M/Content/Ch08/Busn210ch08.xls Download pdf notes: https://people.highline.edu/mgirvin/AllClasses/210M/Content/Ch08/Busn210Ch08.pdf See how to construct Confidence Intervals for Proportions using NORMSINV function and
From playlist Excel 2007 Statistics: Charts, Functions, Formulas
Messing Around with the Margin of Error for a Confidence Interval of a Proportion
Understanding how to affect margin of error for a one proportion confidence interval through sample size and confidence level, and solving for sample size, confidence level, sample proportion, or margin of error
From playlist Unit 8: Hypothesis Tests & Confidence Intervals for Single Means & for Single Proportions
Statistics Lecture 7.2 Part 1: Finding Confidence Intervals for the Population Proportion
From playlist Statistics Playlist 1
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: An intro to binomial probability, using and understanding the formula as well as using the binompdf function on the TI calculators.
From playlist Older Statistics Videos and Other Math Videos