Amir Mobasheri

5 Questions 8 Answers 0 Followers

Questions related from Amir Mobasheri

Does it matter how the data was obtained for trying to estimate the density of an statistic using bootstrapping?

Suppose data=(ui,vi) , i= 1,...n . and we want to estimate theta=corr(ui,vi) . My question is , does it matter if the u and v pair are obtained from some population or calculated for example from...

10 October 2015 9,651 6 View

In the context of regression analysis, what does a "pretest estimator" mean?

I came across the term "pretest estimator" in an econometrics book. Could someone elaborate on it?

05 May 2015 8,874 7 View

What is the reason for getting jointly non significance for a set of variables in regression while some of them are individually significant?

There is an example in Wooldridge second edition page 445 chap 14 which the F test for a joint test is insignificant while several variables are significant.

05 May 2015 8,279 8 View

How is a latent variable/factor trained in Dynamic Bayesian Network?

I am trying to build a DBN using SAMIAM . It uses sample to train by EM . But since in reality the value of unobserved/latent variable is not known , I used N/A but it gives just the prior already...

04 April 2015 722 2 View

Anyone familiar with VIF (Variance Inflation Factor) and categorical variables?

1. If the regression model includes several categorical variables,is it rational to calculate VIF (Variance Inflation Factor) without converting them to dummy variables? 2. Is there a way to...

04 April 2015 1,051 3 View