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Questions related to Applied Statistics
While reading a community health survey (Community Health Survey annually conducted in all municipalities of South Korea since 2008) result report, I found that coefficient of variation (CV) was...
17 February 2016 4,679 2 View
I am just beginning to work on longitudinal research and I am using Mplus for latent growth modelling. I am trying to understand the meaning of standardized intercepts (I) and slopes (S) in my...
16 February 2016 9,986 4 View
I am using R for creating DocumentTermMatrix and then converting it to normal matrix for further processing. There are 26,000 records and 4 columns, while converting DocumentTermMatrix to normal...
13 February 2016 3,865 5 View
If there was no significant difference ( p value greater than 0.05) and the null is rejecting , is this clinically valid or should it be only statistically valid? in others words, when should the...
12 February 2016 8,556 10 View
For example in my case i need to get a relationship between percentage of steel fiber, aspect ratio, wlc and compressive strength .
11 February 2016 1,397 4 View
Folks, Till now I have been measuring the Volumes over moving averages of N-past days. And i realized how wrong I was. I feel, Volume is not a time-series data unlike price quotes. There is very...
09 February 2016 558 13 View
Hi all I have two tasks: 1) Using historical water quality monitoring data to identify high and low flow periods for specific sites and, 2) Determining what influence the dilution effect might...
03 February 2016 1,962 3 View
Kindly elaborate other ways of solving Heteroscedasticity problem in Multiple Linear Regression Model. If possible, assist me with published empirical literature on the same. Thank you. Olila, D.O.
03 February 2016 4,983 7 View
Assessment of the relative importance of variables has often beenbased only on the best model (e.g., often selected using a step-wise testingprocedure). Can anyone elaborate this by giving a example?
02 February 2016 5,430 5 View
02 February 2016 1,964 2 View
02 February 2016 3,162 7 View
what does the constant mean in a multiple linear regression model for properties' value??
25 January 2016 6,914 5 View
For empirical studies how we can proceed for doing biasness checking.
20 January 2016 885 3 View
Do I have to refer to normal Q-Q plot in order to find out the highest fitness of the scores?
17 January 2016 10,039 8 View
How can one explain negative variance? Why and when is it happening? Thank you
07 January 2016 1,512 13 View
latine hyper cube design global and local optimization 4D color maps How do we assess the global behavior of a model and obtain the equilibrium points and analyze their stability through...
04 January 2016 2,101 1 View
01 January 2016 6,217 6 View
I have total seven variables and try to apply cointegration test but Eviews will not show the results. so i would like to ask if there are any limit to include variables in cointegration test ? If...
01 January 2016 10,119 2 View
01 January 2016 9,165 4 View
01 January 2016 4,346 9 View
01 January 2016 3,323 14 View
At the following link, on the first page, you will see a categorization of heteroscedasticity into that which naturally should often be expected due to population member size differences, and that...
22 December 2015 1,080 8 View
I have thought on this question for quite a while and I'm not really sure how to best approach it. There are many things in society and in nature whose occurrence we attribute to the phenomena...
12 December 2015 10,085 0 View
Are omitted variables a subset of lurking variables, where the word "omitted" is only used when bias is the focus? Or perhaps there is some other matter of context? I find I am not clear on the...
12 December 2015 8,661 4 View