Analyses of Variance

Can anyone help with the analysis of variance (χ2) with DF > 100 and the critical values?

I want to know how to determine (or where to get) the critical values for the chi-square distribution when the degrees freedom are more than 100? The tables that are available for the chi-square...

04 July 2014 3,404 4 View

What are the best GUI options for learning to use R?

What option(s) for GUI's do you recommend for a researcher with no programming background to learn how to use R for statistical analyses? I'm most familiar with JMP and have used SPSS and...

12 June 2014 7,435 3 View

What are the best GUI options for learning to use R?

What option(s) for GUI's do you recommend for a researcher with no programming background to learn how to use R for statistical analyses? I'm most familiar with JMP and have used SPSS and...

06 June 2014 7,708 3 View

What type of prediction methods will be useful while dealing with high variance data?

I am working in travel time prediction area. I had travel time data with high variance. Can anyone one suggest any prediction method which deals with high variance of data.

06 June 2014 1,278 6 View

Why is variance calculated by squaring the deviations?

The variance of a set of data is obtained by calculating the mean of the squared deviations of the individual observations . Why not by taking the mean of the absolute deviations (ignoring the...

06 June 2014 8,363 29 View

Variance derivation, can anyone help?

Given X_n=λY_n+(1-λ) X_(n-1)+(Y_n-Y_(n-1) ), considering the points Y_(n+1), Y_n, Y_(n-1) and then choosing two at random and taking the average? (Y_(n+1) - Y_n, Y_n-Y_(n-1), Y_(n+1)- Y_(n-1)...

04 April 2014 7,150 0 View

Can I test the null and final models of HLM (two-level) using spss?

To see the differences of variances explained by two models. Because most researchers use additional software like MLwin etc.

04 April 2014 5,944 1 View

In a group comparison for a non-normally distributed parameter, which (non-parametric) analysis could be performed to include possible covariates?Thx!

I suppose no GLM, given the non-Gaussian distribution?

01 January 1970 3,774 5 View

How does MANOVA help to find interaction effect?

As MANOVA refers to Multivariate analysis of variance it is used where more than one dependent variables studied with only single treatment variable. it is actually ANOVA but the difference here...

01 January 1970 7,436 4 View

It is a good option to use Pearson's coefficient of variation in data analysis?

I have data with the starch percentage for corn hybrid. I calculate the mean, standard deviation and Pearson coefficient of variation 1) If Pearson coefficient of variation is greater than 30% can...

01 January 1970 6,988 12 View

Can I use a not-very-variable covariate in ANCOVA?

Hi, I have a measurement of the length of phalanges of gorillas, chimpanzees, and humans, and I want to know whether there are significant differences in this variable among these species, after...

01 January 1970 8,725 3 View

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01 January 1970 2,594 0 View

Repeated measure ANOVA in Complete Randomized Block Design

Hello everyone, I would like to receive information and exchange opinions concerning the correct use of analysis of variance in a certain experimental design. The reason why I'm starting this...

01 January 1970 8,878 8 View

Repeated measure ANOVA in Complete Randomized Block Design

Hello everyone, I would like to receive information and exchange opinions concerning the correct use of analysis of variance in a certain experimental design. The reason why I'm starting this...

01 January 1970 3,031 13 View

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01 January 1970 6,124 0 View

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01 January 1970 1,464 0 View

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01 January 1970 7,153 0 View