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Questions related to Applied Statistics
Is there any data base to get the figures of total NGOs operations worldwide? Can you suggest some references?
02 February 2015 4,877 6 View
I find difficulty applying all items of PRISMA while writing SR. which review guidelines of ttt. It does not include any RCTs, so I can't apply Nany items such as risk of bias and its results. The...
02 February 2015 964 6 View
I have a single response, which denote the number of faulty products/total products (success, or failure ratio) over quite a number of factors (~15). Since these 15 factors are not...
01 January 2015 8,415 11 View
Scatterplots are a useful tool here.
01 January 2015 5,300 2 View
Many might first think of Bayesian statistics. "Synthetic estimates" may come to mind. (Ken Brewer included a chapter on synthetic estimation: Brewer, KRW (2002), Combined survey sampling...
01 January 2015 6,943 10 View
Hi everyone, I wanted to analyse my data with a chi-square test, since it involves a 2x6 table, but more than 20% of my expected counts are less than 5. Usually, one would use a Fisher's exact...
01 January 2015 314 9 View
Many research that I read using pearson correlation coefficient to test the reliability of the achievement test after making test re-test. But some people told me that this is wrong. Which one is...
01 January 2015 1,530 6 View
What are the differences between quantitative synthesis methods for combining studies? And which should be used when?
01 January 2015 5,822 2 View
Is there any known analytical result or (very) fast algorithm (with proof of correctness) giving the maximum likelihood sample when drawing from the Multinomial MULT(N ; P1 ... PM), with N...
01 January 2015 623 6 View
I want to make a meta-analysis on household consumption expenditures elasticity data. In these studies that I've got; methods and regions and etc. varies according to studies. But at last, the...
01 January 2015 4,992 7 View
I am trying to relate a professional group's level of understanding of a concept to the safety practices the group subscribes to, and to the safety practices the group engages in. My survey...
01 January 2015 6,349 3 View
I was arguing with my professor regarding this matter when I said I want to continue research on mammal. I could not ensure him that the small number of sample is representative because as member...
01 January 2015 5,656 6 View
I have measured nitrous oxide for 42 days, the emission patterns are varied with days. Should I consider the day as a fixed or random factor? What kind of statistical model will be suitable to...
01 January 2015 8,097 4 View
Could anyone help me to find the certain parameter sets for which I can get the Routh Hurwitz's stability criterion for a three species food chain model?
01 January 2015 9,195 3 View
I have some calcium spiking data from hippocampal neurons. It shows continuous spiking. I have added one file for reference. At a 100 time frame I have added a drug. So can any one suggest what...
12 December 2014 3,162 4 View
I and my friend conducted some research about phytoplankton abundance in some fish ponds in Yogyakarta, Indonesia. We try to use CCA using PAST version 2.17 since it can give precise visualization...
12 December 2014 666 7 View
Generally, the significance level used to detect statistical significance is set at 0.05. However, for investigations involving much larger samples, a very small difference can yield significance...
12 December 2014 3,385 4 View
In the U.S., it may be more difficult to obtain good administrative data for an entire population than in many other countries. Partial data may be useful, but some may try to use it for...
12 December 2014 709 8 View
We have to evaluate the Weibull modulus and charecteristic strength by the help of maximum likelihood method by mircosoft excel. How can I do that? I know the capability of microsoft excel. How...
12 December 2014 5,864 6 View
I have done the medium optimization using RSM - CCD for two factors (Carbon source (A) & Nitrogen source (B)) with the levels ranging from 137-222 for A, 3-15 for B. As a result am getting...
12 December 2014 9,830 2 View
In multivariate software like SIMCA, I have some observations out of the threshold in the graph of distance to model and I'd like to know if they can be considered as outliers? and how to...
12 December 2014 4,381 4 View
We have measured simple relationships between the size of different species and their weight (biomass). They are linear regressions (sometimes semilog). The type of question I would like to...
12 December 2014 8,383 10 View
If the variables I am controlling for in a multivariate binary logistic regression become statistically significant, do I have to include this in my final result? The said variable has a known...
12 December 2014 5,187 6 View
Hello, while I am familiar with binary logistic regression and with its mechanics and interpretation, I am going to approach multiple LR for the first time. I would like to know if anyone knows of...
11 November 2014 5,129 6 View