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View:  Topic list, Topic summary Topics 1 - 10 of 29927  Older »
Description: Statistics from a strictly mathematical viewpoint.
 

Skewness and kurtosis p-values 
  I calculate the skewness and the kurtosis from a set of real numbers (distribution unknown) using the formulas: [link] [link] I usually need to check whether the calculated skewness and kurtosis are... more »
By Cristiano  - 1:39pm - 3 new of 3 messages    

probability density function identification 
  Hi, I have a question on trying to reverse engineer the probability density function from which a set of numbers were generated. My setup is the following: 1) I have two probability density functions, both of whose domain is bounded in [0,1]: a) Beta (4,2) distribution b) Uniform (0.358060,0.975273) distribution... more »
By Fern  - May 21 - 8 new of 8 messages    

Chinatown bus operator ordered shut down 
  ... Fung Wah's problems are a different issue from the article's claim about the general safety of "curbside buses". (They couldn't exactly write an article about companies owned by ethnic Chinese.) [link] I took the article with a grain of salt, considering its source. But... more »
By Jimmy  - May 20 - 4 new of 4 messages    

Intraclass correlation 
  Hi there, I am calculating intraclass correlation coefficients to assess the reliability of visual scoring of brain scans in Parkinson's. However, I did this three times: *in SPSS, *in software available from the university of Hong Kong at [link]... more »
By frank.degee...@gmail.com  - May 18 - 3 new of 3 messages    

Solution Manual Complex Variables with Applications, 3rd ED by David A. Wunsch 
  I have the instructor solution manuals to accompany mathematical, engineering, physical, chemical, financial textbooks, and others. These solution manuals contain a clear and concise step-by-step solution to every problem or exercise in these scientific textbooks. They are all in PDF format. If you are interested in any one, simply... more »
By Robert Carter  - May 17 - 1 new of 1 message    

Introduction to Econometrics, 3/E Stock Watson Solution manual and test Bank - is now available for sale. buy now at affordable prices. Contact to buy this : bestsellers.testbanks(at)gmail .com. 
  Introduction to Econometrics, 3/E Stock Watson Solution manual and test Bank - is now available for sale. buy now at affordable prices. Contact to buy this : bestsellers.testbanks(at)gmail .com.
By eso...@gmail.com  - May 15 - 1 new of 1 message    

Distribution of the peak from a size-N complex vector 
  Hope this is the right place to ask this question. I'm trying to determine the distribution of the peak of a length-N complex vector whose real and imaginary components are Gaussian distributed with zero mean and identical variance. This situation can be simulated in Matlab as follows: test_mat = (randn(10000,8192)+1j*randn(10 000,8192))/sqrt(2);... more »
By sbennet...@gmail.com  - May 15 - 2 new of 2 messages    

Compare two methods of random permutations 
  I want to compare in a practical sense two methods of random permutations -- one theoretically perfect, namely that of Fisher and Yates, and another ad hoc, let's call it X. A way of comparison I could think of is the following: One starts from the standard configuration of n objects [0, 1, 2,... more »
By Mok-Kong Shen  - May 8 - 8 new of 8 messages    

SOLUTIONS MANUAL: Mathematics for Physicists by Susan Lea 
  I have the instructor solution manuals to accompany mathematical, engineering, physical, chemical, financial textbooks, and others. These solution manuals contain a clear and concise step-by-step solution to every problem or exercise in these scientific textbooks. They are all in PDF format. If you are interested in any one, simply... more »
By Robert Carter  - May 4 - 2 new of 2 messages    

test for difference in center of mass 
  Hi, I'm looking to test for a difference in center of mass between two groups of points. Each point has an x,y,z coordinate and I need to know if the means of the two clouds are significantly different, under the assumption that they are approximately Normally distributed. Can anyone point me to a test I can use?... more »
By zim_...@hotmail.com  - May 4 - 5 new of 5 messages    

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