Def Standard Error
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Retirement Personal Finance Trading Q4 Special Report Small Business Back to School Reference Dictionary Term Of The Day Unicorn In the world of business, standard error calculation a unicorn is a company, usually a start-up that does not ... Read standard error of the mean More » Latest Videos Robert Strang: Investopedia Profile Why Create a Financial Plan? Guides Stock Basics standard error definition biology Economics Basics Options Basics Exam Prep Series 7 Exam CFA Level 1 Series 65 Exam Simulator Stock Simulator Trade with a starting balance of $100,000 and zero risk! http://stattrek.com/statistics/dictionary.aspx?definition=standard%20error FX Trader Trade the Forex market risk free using our free Forex trading simulator. Advisor Insights Newsletters Site Log In Advisor Insights Log In Standard Error Loading the player... What is a 'Standard Error' A standard error is the standard deviation of the sampling distribution of a statistic. Standard error is a statistical term http://www.investopedia.com/terms/s/standard-error.asp that measures the accuracy with which a sample represents a population. In statistics, a sample mean deviates from the actual mean of a population; this deviation is the standard error. BREAKING DOWN 'Standard Error' The term "standard error" is used to refer to the standard deviation of various sample statistics such as the mean or median. For example, the "standard error of the mean" refers to the standard deviation of the distribution of sample means taken from a population. The smaller the standard error, the more representative the sample will be of the overall population.The standard error is also inversely proportional to the sample size; the larger the sample size, the smaller the standard error because the statistic will approach the actual value.The standard error is considered part of descriptive statistics. It represents the standard deviation of the mean within a dataset. This serves as a measure of variation for random variables, providing a measurement for the spread. The smaller the spread, the more accurate the dataset is said to be.Standard Error and Population SamplingWhen a population is sampled, the mean, or average, is generally calculated. The standard error can include
Explore My list Advice Scholarships RENT/BUY SELL MY BOOKS STUDY HOME TEXTBOOK SOLUTIONS EXPERT Q&A TEST PREP HOME ACT PREP SAT PREP PRICING ACT pricing http://www.chegg.com/homework-help/definitions/standard-error-31 SAT pricing INTERNSHIPS & JOBS CAREER PROFILES ADVICE EXPLORE MY LIST ADVICE SCHOLARSHIPS Chegg home Books Study Tutors Test Prep Internships Colleges Home home / study / math / statistics and probability definitions / standard error Standard Error The standard error is the estimated standard deviation or measure of variability in the sampling distribution of a statistic. A low standard error means there is relatively standard error less spread in the sampling distribution. The standard error indicates the likely accuracy of the sample mean as compared with the population mean. The standard error decreases as the sample size increases and approaches the size of the population. Sigma (σ) denotes the standard error; a subscript indicates the statistic. For example, the standard error of the mean is represented by σM. To find standard error definition the standard error of the mean, divide the standard deviation by the square root of the sample size: , where σ is the standard deviation of the original sampling distribution and N is the sample size. See more Statistics and Probability topics Need more help understanding standard error? We've got you covered with our online study tools Q&A related to Standard Error Experts answer in as little as 30 minutes Q: 1.) YOU ROLL TWO FAIR DICE, A RED ONE AND A BLUE ONE: *WHAT IS THE PROBABILITY OF GETTING A SUM OF 5? A: See Answer Q: I wish to conduct an experiment to determine the effectiveness of a new reading program for third grade children in my local school district who need help with reading skills. What parameters would I need to establi... A: See Answer Q: Let P(A) = 0.2, P(B) = 0.4, and P(A U B) = 0.6. Find the values of (i) (ii) (iii) A: See Answer See more related Q&A Top Statistics and Probability solution manuals Get step-by-step solutions Find step-by-step solutions for your textbook Submit Close Get help on Statistics and Probability with Chegg Stu