Understanding the Moment of Distribution in Economics
An examination of multicollinearity within multiple regression analysis, its impacts, and possible remedies.
An overview of multiple regression, its definition, and its significance in economics.
Definition and meaning of nested models in econometrics
The branch of statistics concerned with non-parametric statistical models.
Definition of normal distribution in the context of economics and statistical analysis.
Definition of normal distribution in the context of economics and statistical analysis.
Understanding the concept of the null hypothesis in statistical inference.
A statistical test where the hypothesis is rejected only for sufficiently large or small values of the test statistic, when the direction of the effect is known beforehand.
A statistical term referring to an observation that significantly deviates from the rest of the data.
The probability that a random draw from the distribution of the test statistic under the null hypothesis would take a value at least as great as the value of the test statistic computed from the sample; the smallest significance level of the test.
The definition and meaning of Partial Autocorrelation Coefficient in econometrics and time series analysis.
A measure of the degree of linear relationship between two variables after the effect of other variables has been removed.
Definition and meaning of the term 'Percentile' in economics.
In statistical inference, the probability that a test will reject the false null hypothesis.
An estimator of the value of the dependent variable given by the estimated regression equation
An analytical technique for dimensionality reduction in multivariable datasets through identifying principal components.
A detailed overview of probability distributions, their definitions, and relevance in various economic frameworks.
An economics definition highlighting the use of proxy variables for variables that cannot be measured directly.
Quantile: Definition, meaning, and application in economic analysis.
A detailed exploration of quota sampling, its importance in statistical analysis and comparison with other sampling methods.
A discrepancy between the observed value of a variable and its true value due to chance or imprecise measurement.
A random sample refers to a subset of individuals chosen from a larger set (population) where each individual has an equal chance of being selected.
A function that maps the outcomes of a random experiment onto the real numbers
An overview of rank correlation, a measure often utilized to evaluate the degree of similarity between two rankings used in various fields of economics and statistics.
The rejection region is a statistical concept used in hypothesis testing, referring to the range of values that leads to the rejection of the null hypothesis.
A decision rule for rejecting the null hypothesis in favour of the alternative based on test statistics or p-values.
A unit-free measure of the reliability of a statistic, defined by the absolute value of the ratio of the standard error to the sample estimate of the statistic, expressed as a percentage.
Variation in the dependent variable not explained by the regression model, represented by the residuals of the regression
Explanation of the term 'right-hand-side variable,' a term used in statistical regression analysis.
An overview of Root Mean Squared Error (RMSE), including its definition, historical context, applications, and relevance in various economic theories.
A detailed exploration of the term 'sample' in economic studies, its significance, and various analytical frameworks.
An in-depth exploration of the term 'Sampling Distribution'—a fundamental concept in statistics and econometrics.
A diagram depicting the relation between two characteristics of a set of observations.
Comprehensive entry on Serial Correlation, its meanings, context, and analytical frameworks in economics.
A comprehensive overview of the significance level, concept, and its implications in hypothesis testing.
An overview of significance tests, their formulation, and application in the context of linear regression models.
A measure of the degree of asymmetry of the distribution of a random variable.
A comprehensive entry on the Spearman Rank Correlation Coefficient, its definition, applications, and significance in economics.
A detailed examination of spurious correlation in statistics and economics.
Definition and comprehensive analysis of the standard deviation in economics.
Definition and meaning of the term 'Standard Error' in the context of economics and statistics.
An in-depth look at the stationary process, including its definitions, major analytical frameworks, and historical context.
A branch of mathematics dealing with the methods for collection and analysis of data samples to infer properties of a broader population.
A method of sampling that involves dividing a population into subgroups and taking samples from each subgroup in proportion to their presence in the population.
Student’s t-distribution is a probability distribution used in statistics to estimate population parameters when the sample size is small.
An overview of the t-distribution used in statistical analysis
An overview of the t-test, a statistical hypothesis test used to determine if there is a significant difference between the means of two variables.
Definition and exploration of the term 'tolerance interval' in the field of economics and statistics
Definition and meaning of the term 'treatment group' in economics, statistics, and experimental research.
An overview of Type I and II errors, their significance in hypothesis testing, and their implications in economic research.
Explanation and significance of an unbiased estimator in statistics and econometrics
A comprehensive entry on the concept of Uniform Distribution in economics, including its definitions, historical context, and major analytical frameworks.
A distribution that has a single unique mode, or peak.
An overview of the Vector Autoregressive (VAR) model, its definitions, contexts, and applications within economics.
A comprehensive entry on the definition and implications of variance in the realm of economics and finance.
Overview of the variance–covariance matrix in economics and statistics, covering definitions, concepts, and analysis frameworks.
An average giving weights to different numbers in proportion to their importance
An in-depth exploration of the binomial distribution, its historical context, definitions, major analytical frameworks, and applications.
