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statisticsfun 578,461 views 5:05 How to find the confidence interval of the proportion in the TI-84 calculator - Duration: 3:21. asked 5 years ago viewed 4323 times Related 4GLM for proportional data8Standard error of sample standard deviation of proportions0How can I calculate the confidence interval for the mean of sample proportions?1How Sign in to add this video to a playlist. About Press Copyright Creators Advertise Developers +YouTube Terms Privacy Policy & Safety Send feedback Try something new! have a peek at this web-site

How are aircraft transported to, and then placed, in an aircraft boneyard? Thanks @Bernd! –Mog May 20 '11 at 2:22 1 Nooo! If 54 out of 360 students plan to go to graduate school, the proportion of all students who plan to go to graduate school is estimated as ________. Pedro Thenumberbender 2,007 views 7:38 Standard error of the mean - Duration: 4:31. https://onlinecourses.science.psu.edu/stat200/node/43

That gives $$\text{SE}(\bar X) = \sqrt{\bar X(1-\bar X) \sum_{i=1}^n \omega_i^2}.$$ For unweighted data, $\omega_i = 1/n$, giving $\sum_{i=1}^n \omega_i^2 = 1/n$. Standard deviation refers to the variability of the original 0-1 variable. –Aniko May 20 '11 at 2:55 Oh! In terms of percent, between 47.5% and 56.5% of the voters favor the candidate and the margin of error is 4.5%.

Exercise **4. **Math Meeting 338,710 views 8:26 APSTATS Mean and Standard Deviation of a Sampling Distribution - Duration: 7:38. On the average, a random variable misses the mean by one SD. Calculating Standard Error Of Measurement The standard error of this estimate is ________.

Announcement The Standard Error of a Proportion Sometimes, it's easier to do the algebra than wave hands. Calculating Standard Error Stata Skip to Content Eberly College of Science STAT 200 Elementary Statistics Home » Lesson 6: Sampling Distributions 6.2 - Rule of Sample Proportions (Normal Approximation Method) Printer-friendly versionIf samples of the more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science http://stattrek.com/estimation/confidence-interval-proportion.aspx?Tutorial=Stat The resulting quantity is called the estimated standard error of the sample proportion .

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Calculating Margin Of Error Your cache administrator is webmaster. The service is unavailable. Standardize the (positive) weights $\omega_i$ so they sum to unity.

Consider estimating the proportion p of the current WMU graduating class who plan to go to graduate school. view publisher site Sign in 4 Loading... Calculating Standard Error In Excel Mathbyfives 56,939 views 4:28 STATISTICS: Mean and Standard Deviation of Sampling Distribution of Sample Proportion in Filipino - Duration: 5:49. Calculating Standard Error Regression This last term is called the standard error of estimation of the sample proportion, or simply standard error (SE) of the proportion .

Published on Jul 31, 2014How to solve the standard deviation for a proportion Category Howto & Style License Standard YouTube License Show more Show less Loading... Check This Out In a simple random sample $X_1, \ldots, X_n$ where each $X_i$ independently has a Bernoulli$(p)$ distribution and weight $\omega_i$, the weighted sample proportion is $$\bar X = \sum_{i=1}^n \omega_i X_i.$$ Since Colonists kill beasts, only to discover beasts were killing off immature monsters Mathematics TA who is a harsh grader and is frustrated by sloppy work and students wanting extra points without However, since we do not know p, we cannot calculate this SE. Calculating Standard Error Of Estimate

Are old **versions of Windows at risk of** modern malware attacks? Copyright © 2016 The Pennsylvania State University Privacy and Legal Statements Contact the Department of Statistics Online Programs English Español Français Deutschland 中国 Português Pусский 日本語 Türk Sign in Calculators Tutorials Sign in Share More Report Need to report the video? Source DrKKHewitt 15,693 views 4:31 When to use the Standard Deviation, when to use the Standard Error - Duration: 3:42.

Show more Language: English Content location: United States Restricted Mode: Off History Help Loading... Calculating Percent Error These are the familiar formulas, showing that the calculation for weighted data is a direct generalization of them. In data analysis, population parameters like p are typically unknown and estimated from the data.

In other words, 0.52 of the sample favors the candidate. Sign in Transcript Statistics 2,733 views 1 Like this video? Close Yeah, keep it Undo Close This video is unavailable. Calculating Sampling Error Watch QueueQueueWatch QueueQueue Remove allDisconnect Loading...

Justin Matelski 672 views 13:36 How to calculate Standard Deviation and Variance - Duration: 5:05. The SE becomes $\sqrt{p(1-p)/n}$ and its estimate from the sample is $\sqrt{\bar X(1-\bar X)/n}$. Although this point estimate of the proportion is informative, it is important to also compute a confidence interval. have a peek here What happens if no one wants to advise me?

Loading... Brandon Myers 1,872 views 6:46 Standard deviation - Statistics - Duration: 8:26. This feature is not available right now. Although there are many possible estimators, a conventional one is to use $\hat p = \bar X$, the sample mean, and plug this into the formula.

Keep in mind that the margin of error of 4.5% is the margin of error for the percent favoring the candidate and not the margin of error for the difference between