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Threads 3181 to 3192 of 3192

# Forum: Statistical Research

Statistical theory and methodology. Mathematical statistics. Parametric inference. Nonparametric inference.

1. ### Sticky: Proof of the day

In this thread we post one (or more if you can't wait) proof a day. I'll start by proving the that V=\sigma^2(X'X)^{-1} in the linear...

• Replies: 14
• Views: 18,625
10-11-2014, 12:02 PM
1. ### [Help] What is the statistical formula applied in this problem?

Stat/Math wizs, if you could kindly shine your beacon on this problem. I'm running some statistics using a clustering algorithm and it classified...

• Replies: 2
• Views: 2,152
05-14-2010, 11:15 PM
2. ### [Multinomial Distribution] Help with applying Multinomial to a biological problem

Hello all, I need help with a stats question I'm trying to solve for a biological question. http://en.wikipedia.org/wiki/Multinomial_distribution....

• Replies: 1
• Views: 1,404
08-12-2013, 11:49 AM
3. ### [R] Estimation of the emprical distribution

Hi all, I was wondering if there's an R package online that automatically estimates the best distribution of my empirical data and gives the...

• Replies: 2
• Views: 719
04-27-2017, 01:26 PM
4. ### [R] permanova for multivariate repeat measures toxicology data set

Hello, I would like to use a permanova to analyze my repeated measures, multivariate data set using the package vegan (adonis function) in R. I...

• Replies: 0
• Views: 2,910
07-12-2013, 03:55 PM
5. ### [SAS] Compare predicted vs actual continuous [0,1] data

Hello, I have predicted values for year and quarter that were calculated from a linear regression, and I also have actual values. I would like to...

• Replies: 1
• Views: 2,130
12-08-2015, 08:01 PM
6. ### [SPSS - Hypothesis testing] Controlling for a variable. ANCOVA?

Hi! I am using open data from New York City's yellow cabs and the in 2013 introduced citibikes (bikesharing service) to see if the introduction of...

• Replies: 0
• Views: 644
05-12-2016, 03:18 PM
7. ### [SPSS] Different sig. level with Two-way ANOVA vs. Independent T-test, Help!

Hi, I am confused right now. I am a newbie for SPSS. The sig. level in independent t-test is different from in two-way ANOVA. Why is that? My...

• Replies: 0
• Views: 1,360
07-29-2012, 05:56 PM
8. ### [Statistica - Nested Anova] How to do a two-way nested anova?

Hi, I'm trying to do a two-way nested anova in Statistica, but the results do not seen to be a two way model. In my study I need to compare if the...

• Replies: 0
• Views: 222
07-14-2017, 11:45 AM
9. ### [wilcoxon/paired t test] when to exclude data? Not normally distributed data.

Hello! I ran an analysis of my data of research into a repeated measures design and found the difference of both conditions to be not normally...

• Replies: 1
• Views: 1,326
11-28-2015, 08:10 AM
10. ### [[ Which stats test(s) for assessing relative weights using ranked (ordinal) data? ]]

Hello forum, I've been mulling this problem over for a while and getting nowhere with it (generating more questions than answers) so I thought I'd...

• Replies: 0
• Views: 1,655
11-25-2012, 09:48 AM
11. ### ¿Weighted moments references?

Hi, I have a sample of frequencies and Sums(totals): Ni Si 23 12345 10 7800 ... Si is the sum over some variable X, measured...

• Replies: 0
• Views: 20,501
04-14-2013, 06:56 AM

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