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Determining sample size based on confidence and margin of error | AP Statistics | Khan Academy
 
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Determining sample size based on confidence level and margin of error. View more lessons or practice this subject at http://www.khanacademy.org/math/ap-statistics/estimating-confidence-ap/one-sample-z-interval-proportion/v/determining-sample-size-based-on-confidence-and-margin-of-error?utm_source=youtube&utm_medium=desc&utm_campaign=apstatistics AP Statistics on Khan Academy: Meet one of our writers for AP¨_ Statistics, Jeff. A former high school teacher for 10 years in Kalamazoo, Michigan, Jeff taught Algebra 1, Geometry, Algebra 2, Introductory Statistics, and AP¨_ Statistics. Today he's hard at work creating new exercises and articles for AP¨_ Statistics. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
Views: 74362 Khan Academy
How to determine the Sample Size?
 
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The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In this video I have discussed a very simple way to determine the Sample size with reference.
Views: 61579 My Easy Statistics
How to calculate Sample Size
 
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A video on how to calculate the sample size. Includes discussion on how the standard deviation impacts sample size too. Like us on: http://www.facebook.com/PartyMoreStudyLess Related Video How to calculate Samples Size Proportions http://youtu.be/LGFqxJdk20o
Views: 297602 statisticsfun
Determining Sample Size
 
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Views: 91498 tPCAonline1
Confidence Intervals for One Mean:  Determining the Required Sample Size
 
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I find the sample size required to obtain a given margin of error in a confidence interval for mu. I discuss the appropriate formula and work through an example.
Views: 43814 jbstatistics
How to calculate sample size and margin of error
 
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In this tutorial I show the relationship between sample size and margin of error. I calculate the margin of error and confidence interval using three different sample sizes. As the sample size increases the margin of error goes down. Like us on: http://www.facebook.com/PartyMoreStudyLess Related Videos on Sample Size: Sample Size http://youtu.be/Z2dKK1xicgs Sample Size of a Proportion http://youtu.be/LGFqxJdk20o
Views: 127318 statisticsfun
AP Statistics: Find Sample Size for a Margin of Error
 
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If you are interested in practice AP questions to help prepare you for the AP test in May please utilize Barron’s AP Statistics Question Bank. Access via the web or by downloading the app in iTunes or the Google Play Store. Links are below: Web: https://www.examiam.com/ap iTunes: https://itunes.apple.com/us/app/barrons-ap-statistics/id1438469502?mt=8 Google Play Store: https://play.google.com/store/apps/details?id=com.examiam.apstatistics
Views: 37959 Michael Porinchak
How to Find a Sample Size in Statistics
 
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Link to sample size calculator: http://www.nss.gov.au/nss/home.nsf/pages/Sample+size+calculator Link to table for 95% confidence interval (scroll to the bottom for the table): http://edis.ifas.ufl.edu/pd006
Views: 54571 Stephanie Glen
Calculate A Sample Size of A proportion
 
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How to calculate a sample size for a proportion (percentage). Includes discussion on how sample changes as proportions (percentages) change. Calculating Sample Size https://youtu.be/i47gaNmEUM0 Calculating z scores https://www.youtube.com/playlist?list=PL6157D8E20C151497 Facebook http://www.Facebook.Com/PartyMoreStudyLess Professor of the Universe: David Longstreet http://www.linkedin.com/in/davidlongstreet/ MyBookSucks.Com
Views: 23580 statisticsfun
How to determine the minimum sample size for your research ?
 
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How to determine the minimum sample size 1st when the population size is large 𝒏 = minimum sample size 𝒛 -value= Value of standard normal distribution 𝒑 = The expected or probability of previous similar studies 𝒅 = The maximum allowable deviation or error of the estimate The 1st step: Calculate the value of standard normal distribution Z-value It can be obtained from the confidence level. The 2nd step: The expected rate or percentage for this phenomenon expected probability p in the population . Otherwise it can be assumed as 50%, because this ratio always gives the biggest sample size result more conservative. The 3rd step: Allowable Error value or accuracy of the statistical study. That called Margin of Error MOE No more and no less than a certain percentage e.g. + - 5%, or 2% + -
Views: 29804 MIS
2. Sample Size Calculation – Basic Formula
 
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Introduction to Sample Size Calculation Training session with Dr Helen Brown, Senior Statistician, at The Roslin Institute, January 2016. ************************************************ These training sessions were given to staff and research students at the Roslin Institute. The material is also used for the Animal Biosciences MSc course taught at the Institute. ************************************************ A spreadsheet to carry out the calculations described in the presentation may be copied here: http://datashare.is.ed.ac.uk/handle/10283/1996 ********************************************* *Recommended YouTube playback settings for the best viewing experience: 1080p HD ************************************************ Content: Sample size calculation Calculate it such that there is a good chance of achieving study objectives Depends on several factors: ---Size of difference (?) to detect, minimal effect of interest - Eg a 50% decrease in gene expression ---Significance level (a) (eg 0.05) ---Power (ß) = chance of detecting a significant result if true difference is ? (typically 80%, 90%) ---Standard deviation (SD or s) of data (how much variability) Basic formula for sample size - Continuous data Where ? = size of difference, minimal effect of interest a = significance level (eg 0.05) ß = power, probability of detecting a significant result (typically 80%, 90%) s = SD of data Zp = points on normal distribution to give required power and significance Most suitable for data assumed to be normally distributed Non-normal continuous data : ---no ideal formula ---above formula often suitable as it tends to be conservative (due to SDs tending to be large in non-normal data) Z-values are from the Normal distribution
Calculating the Sample Size with a Finite Population in Excel
 
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This video demonstrates how to calculate the sample size with a finite population using Microsoft Excel. Variables used in the sample size equation include the confidence level, population proportion, confidence interval (margin of error) and the population size.
Views: 34151 Dr. Todd Grande
Confidence Intervals for a Proportion:  Determining the Minimum Sample Size
 
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I discuss determining the minimum sample size required to achieve a given margin of error when estimating a population proportion. (For intervals based on the normal approximation.)
Views: 39706 jbstatistics
Elementary Statistics - Chapter 7 - Estimating Parameters and Determining Sample Sizes Part 1
 
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Estimating Parameters and Determining Sample Sizes Part 1 Confidence Intervals
Views: 1761 J Derosa
Sample Size Determination
 
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This tutorial shows how to determine the optimal sample size.
Views: 12713 Learn Something
Determining an Appropriate Sample Size
 
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Subscribe to the OpenIntroOrg channel to stay up-to-date. This video was created by OpenIntro (openintro.org) and provides an overview of the content in Section 4.6 of OpenIntro Statistics, which is a free statistics textbook with a $10 paperback option on Amazon. This video introduces concepts for finding an appropriate sample size when collect data.
Views: 25347 OpenIntroOrg
VIDEO How to Determine Sample Size
 
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Video on the formula for determining sample size.
Views: 17043 Kevin Brown
Determination of sample size
 
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Gaurang Tiwari Faculty of Education, Banaras Hindu University, Varanasi
Views: 2391 vmouonline
Statistical methods used to calculate sample sizes
 
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This Video covers the statistical methods used to calculate sample sizes for both attribute and variables data. Methods for collecting the sample will be covered. Every sampling plan has risks. This webinar covers how to calculate Type I and Type II errors. A discussion of how the FDA views sampling plans, especially for validation and acceptance activities. Sample size to ensure a certain level of process capability will be covered. For More Information Contact - Organization: NetZealous BDA GlobalCompliancePanel Website: http://www.globalcompliancepanel.com/ Email: [email protected] Help us caption & translate this video! http://amara.org/v/OXHH/
Calculating Required Sample Size to Estimate Population Mean
 
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statisticslectures.com - where you can find free lectures, videos, and exercises, as well as get your questions answered on our forums!
Views: 86694 statslectures
Determining Sample Size in Acceptance Sampling
 
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This is a lesson on how to calculate the sample size for different sampling plans with various acceptance numbers, given a particular producer's risk (alpha) and Acceptance Quality Limit (AQL)
Views: 8369 Clinton Stevenson
Excel 2010 Statistics 77: Determine Sample Size
 
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Download file: https://people.highline.edu/mgirvin/ExcelIsFun.htm Topics: 1. Determine Sample size This is for the Highline Community College Busn 210 Statistical Analysis for Business and Economics taught by Michael Girvin
Views: 30510 ExcelIsFun
Calculating Sample Size to Estimate Population Mean
 
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This video shows how to calculate the sample size n required to estimate the population mean µ.
Views: 12360 Joshua Emmanuel
Estimating Sample Size Using Excel
 
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This video demonstrates how to estimate a sample size using Microsoft Excel.
Views: 36466 Dr. Todd Grande
Sample size for a given margin of error for a mean | AP Statistics | Khan Academy
 
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Calculate the approximate sample size required to obtain a desired margin of error in a confidence interval for a mean. View more lessons or practice this subject at http://www.khanacademy.org/math/ap-statistics/estimating-confidence-ap/one-sample-t-interval-mean/v/sample-size-for-a-given-margin-of-error-for-a-mean?utm_source=youtube&utm_medium=desc&utm_campaign=apstatistics AP Statistics on Khan Academy: Meet one of our writers for AP¨_ Statistics, Jeff. A former high school teacher for 10 years in Kalamazoo, Michigan, Jeff taught Algebra 1, Geometry, Algebra 2, Introductory Statistics, and AP¨_ Statistics. Today he's hard at work creating new exercises and articles for AP¨_ Statistics. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
Views: 10878 Khan Academy
Power and Sample Size Calculation
 
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Power and Sample Size Calculation Motivation and Concepts of Power/Sample Calculation, Calculating Power and Sample Size Using Formula, Software, and Power Chart
Views: 12118 Kunchok Dorjee
Calculating T-Test Sample Sizes (with G*Power) | Statistics eLearning
 
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How to calculate sample sizes for t-tests (independent and paired samples) Download G*Power here: http://www.gpower.hhu.de/en.html Like, Comment, and Subscribe for more content like this
Calculating minimum sample size
 
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stats
Views: 27098 apethan
The Importance of Sample size. 30 is important
 
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This video looks at the importance of sample size to understand a population. Also how a wrong size sample can give you misleading information. People discuss that 30 is the right number, we discuss why this is the case. Using just M&M's we can see the importance of sample size
Views: 5575 brad Cotton
1.4 Determine Sample Size
 
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Easy to understand formula to determine sample size in statistics
Statistics: Determining Sample Size of Confidence Interval for Population Mean
 
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This lesson on inferential statistics will show you how to determine the desired or ideal sample size of a confidence interval given the confidence level. GET BOOK: https://itunes.apple.com/us/book/power-flipped-classroom/id1048431489?ls=1&mt=11
Views: 1853 Numberbender
Small sample size confidence intervals | Probability and Statistics | Khan Academy
 
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Constructing small sample size confidence intervals using t-distributions Watch the next lesson: https://www.khanacademy.org/math/probability/statistics-inferential/margin-of-error/v/mean-and-variance-of-bernoulli-distribution-example?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/statistics-inferential/confidence-intervals/v/confidence-interval-example?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Probability and Statistics channel: https://www.youtube.com/channel/UCRXuOXLW3LcQLWvxbZiIZ0w?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 313975 Khan Academy
How to Find the Minimum Sample Size With Unknown Population Standard Deviation.  [HD]
 
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A formal wear store determines that its customer population has a minimum age of 27 years and a maximum age of 62 years. What is the minimum sample size needed to construct a 90% confidence interval for the mean age of its customers, assuming a margin of error of one year? Questions? Tips? Comments? Like me! Subscribe!
Views: 8269 Mr. Math Expert
Elementary Statistics - Chapter 7 -  Estimating Parameters and Determining Sample Sizes Part 2
 
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Estimating Parameters and Determining Sample Sizes Part 2 Confidence Intervals, t-distribution and proportion.
Views: 1254 J Derosa
Population vs sample
 
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Population vs sample - The first step of every statistical analysis you will perform is to determine whether the data you are dealing with is a population or a sample. A population is the collection of all items of interest to our study and is usually denoted with an uppercase N. The numbers we’ve obtained when using a population are called parameters. A sample is a subset of the population and is denoted with a lowercase n, and the numbers we’ve obtained when working with a sample are called statistics. Populations are hard to define and observe. On the other hand, sampling is difficult. But samples have two big advantages. First, after you have experience, it is not that hard to recognize if a sample is representative. And, second, statistical tests are designed to work with incomplete data; thus, making a small mistake while sampling is not always a problem. Follow us on YouTube: https://www.youtube.com/c/365DataScience Connect with us on our social media platforms: Website: https://bit.ly/2TrLiXb Facebook: https://www.facebook.com/365datascience Instagram: https://www.instagram.com/365datascience Twitter: https://twitter.com/365datascience LinkedIn: https://www.linkedin.com/company/365datascience Prepare yourself for a career in data science with our comprehensive program: https://bit.ly/2HnysSC Get in touch about the training at: [email protected] Comment, like, share, and subscribe! We will be happy to hear from you and will get back to you!
Views: 47172 365 Data Science
How to calculate Samples Size Proportions
 
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Introduction on how to calculate samples sizes from proportions. Describes the relationship of sample size and proportion. Like us on: http://www.facebook.com/PartyMoreStudyLess
Views: 27378 statisticsfun
StatQuest - Sample Size and Effective Sample Size, Clearly Explained
 
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The sample size for an experiment depends on what you want to say and what kind of replicates you have. Here I show examples of how biological and technical replicates are counted differently. I also show what to do when your samples are correlated. Oh, and just in case you're interested, the twins are monozygotic. For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/
Sample Size and its Determination
 
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Subject:-Home science Paper :-H16RM - Research Methodology and Statistics for Home Science
Views: 339 Vidya-mitra
A conceptual introduction to power and sample size calculations using Stata®
 
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Learn the basic concepts of power and sample size calculations. With definitions for alpha levels and statistical power and effect size, a brief look at Stata's interface, and strategies for increasing statistical power, this video is a useful introduction for all subsequent power and sample size videos on the Stata Youtube Channel. Created using Stata 13; new features available in Stata 14. Copyright 2011-2017 StataCorp LLC. All rights reserved.
Views: 58792 StataCorp LLC
Power, Type II error, and Sample Size
 
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Video providing an overview of how power is determined and how it relates to sample size.
Views: 46826 Terry Shaneyfelt
STATISTICS: Determining the Sample Size for Confidence Interval for Population Mean in Filipino
 
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Ang statistics lesson na ito sa pag kuha ng confidence interval ng parameter ay nagpapakita kung paano magcompute ng minimum sample size na gagamitin para sa procedure ng pagcalculate ng confidence interval ng population mean.
Views: 598 Numberbender
Derive Sample Size Equation
 
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Where does the sample size equation come from? Video shows how to derive the sample size equation from the confidence interval. Calculating Sample Size https://youtu.be/i47gaNmEUM0 Calculating z scores https://www.youtube.com/playlist?list=PL6157D8E20C151497 Facebook http://www.Facebook.Com/PartyMoreStudyLess Professor of the Universe: David Longstreet http://www.linkedin.com/in/davidlongstreet/ MyBookSucks.Com
Views: 6637 statisticsfun
minimum sample size
 
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Determining the minimum sample size needed to estimate the population mean, mu.
Views: 46624 KYStatProf

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