What is the difference between an estimator and a statistic?
An "estimator" or "point estimate" is a statistic (that is, a function of the data) that is used to infer the value of an unknown parameter in a statistical model. So a statistic refers to the data itself …
What is the relation between estimator and estimate?
Feb 24, 2011 · In Lehmann's formulation, almost any formula can be an estimator of almost any property. There is no inherent mathematical link between an estimator and an estimand. …
Estimator for a binomial distribution - Cross Validated
Oct 7, 2011 · How do we define an estimator for data coming from a binomial distribution? For bernoulli I can think of an estimator estimating a parameter p, but for binomial I can't see what …
ML vs WLSMV: which is better for categorical data and why?
I was wondering which is a better estimator to use for categorical data: ML or WLSMV. I saw on a discussion on the Mplus website that they recommend WLSMV for categorical data but didn't …
What is the difference between a consistent estimator and an …
An estimator is unbiased if, on average, it hits the true parameter value. That is, the mean of the sampling distribution of the estimator is equal to the true parameter value.
Is it ever preferable to have an estimator with a larger variance?
Mar 21, 2025 · In statistics, a common way to judge the quality of an estimator is by its variance - an estimator is said to be better if the variance of the estimator is smaller. For example, if we …
Notation in statistics (parameter/estimator/estimate)
Aug 2, 2018 · In statistics, it is very important to differentiate between the following three concepts which are often confused and mixed by students. Usually, books denote by $\\theta$ an …
r - Lavaan Estimator - Cross Validated
Jul 16, 2024 · I did a three-wave study with repeated measured for each wave.I have two questions: I am doing a CFA for a configural model (testing temporal invariance for each …
Unbiased estimators of skewness and kurtosis - Cross Validated
Jun 20, 2015 · Start asking to get answers skewness unbiased-estimator kurtosis See similar questions with these tags.
How to calculate the expected value of an estimator?
Oct 22, 2020 · You calculate the integral or the sum, same as calculating the expectation of any other random variable.