Learn how to calculate stock beta in Excel using historical price data and formulas—enhance your investment analysis with this step-by-step guide.

Many techniques in survey sampling depend on the possession of information about an auxiliary variable x, or a vector of auxiliary variables, available for the entire population. Regression estimates ...

In this sense, the proposed method is an extension of the variance of the regression estimator for two-stage sampling. The method is applied to quarterly data from the Labor Force Survey where ...

This is a preview. Log in through your library . Abstract Consider the heteroscedastic nonparametric regression model with random design Yi = f(Xi) + V1/2(Xi)εi, i = 1,2,...,n, with f(·) and V(·) α- ...

Cost and schedule variance data are part of earned value analysis, which is a tool that small and large businesses use as an early-warning system to identify and manage problems in ongoing projects.

This article develops five regression models to estimate pipeline construction component costs for different types of pipelines in different regions. Researchers have long used historical pipeline ...