Average Standard Error Calculator
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of the mean of a set of numbers. Standard
Standard Error Calculator Two Samples
Error of the Mean The standard error of the mean is the standard deviation of
Standard Error Calculator For Regression
the sample mean estimate of a population mean. It is usually calculated by the sample estimate of the population standard deviation (sample standard deviation) divided by the square root of standard error of mean calculator the sample size (assuming statistical independence of the values in the sample): Where: SEM = standard error of the mean s = sample standard deviation (see formula below) n = size (number of observations) of the sample The following is the sample standard deviation formula: Where: s = sample standard deviation x1, ..., xN = the sample data set x̄ = mean value of the sample data set N = size of the sample data set ©2016 Miniwebtool | Terms and Disclaimer | Privacy Policy | Contact Us
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How to calculate Standard Error? The below step by step procedures help users to understand how to calculate standard error using above formulas. 1. Estimate the sample mean for the given sample of the population data. 2. Estimate the sample standard deviation for the given data. 3. Dividing the sample standard deviation by the square root of sample mean provides the standard error of the mean (SEM). Solved Example The below solved example for to estimate the sample mean dispersion from the population mean using the above formulas provides the complete step by step calculation. This standard error calculator alongside provides the complete step by step calculation for the given inputs. Example Problem: Estimate the standard error forTour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the http://stats.stackexchange.com/questions/21104/calculate-average-of-a-set-numbers-with-reported-standard-errors company Business Learn more about hiring developers or posting ads with us Cross Validated Questions Tags Users Badges Unanswered Ask Question _ Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the standard error top Calculate average of a set numbers with reported standard errors up vote 4 down vote favorite 3 I have 365 daily measurements that all have standard errors associated with them. Date | Prediction | Standard Error ----------------------------------------- Jan-01-2003 | 24.8574 | 10.6407 Jan-02-2003 | 10.8658 | 3.8237 Jan-03-2003 | 12.1917 | 5.7988 Jan-04-2003 | 11.1783 | 4.3016 Jan-05-2003 | 16.713 | 5.3177 etc ... What is the statistically appropriate way of getting the standard error of yearly average with a 95% Confidence Interval around it ? I am assuming that the errors must be propagating somehow and need to be accounted for. Google returns mostly information on how to calculate the average or standard deviation of a set of numbers, not a set of numbers with errors. I would also appreciate some type of internet reference so I can refer to it later. references average error-propagation share|improve this question edited Sep 12 '13 at 10:05 Comp_Warrior 1,272926 asked Jan 13 '12 at 21:00 user918967 16819 migrated from stackoverflow.com Jan 15 '12 at 5:03 This question came from our site for professional and enthusiast programmers. Do you know if the data normally distributed? –ahoffer Jan 13 '12 at 22:06 I do not. For sake of argument we can say it is but it is likely Poisson because much of the other data I work with usually is. –user918967 Jan 14 '12 at 5:15 The Poisson distribution is used for discrete data whereas your data seems to be continuous. What I would like to know is how the standard errors were obtained. Are they related to the measrements themselves or were they somehow obtained separately? –MansT Jan 15 '12 at 9:11 An average is just a the sum of each item times