statistics

  1. I

    Choose criterion of comparison two data samples

    I have two data samples representing quality of two algorithms. I need to compare them and decide what algorithm is better. Quality depends of experiment number. i.e. it is progressing through experiments. Please, help to decide what criteria should I use to determine what algorithm is better...
  2. O

    Indices with data bound between -1 and +1

    Hi all, I would really appreciate some advice on how to deal with my data. I would like to compare data calculated from an index which is bounded by -1 and +1. I was surprised to see that previously published use of this index has been analysed using standard ANOVA, because I was led to...
  3. C

    Relative bias of estimates of multilevel logistic regression models

    The post is little bit lengthy , but it will give you thorough information and you can run the code easily . Trust me , I believe the answer is really very basic and not lengthy at all . I want to calculate relative bias of estimates of multilevel logistic model with one explanatory...
  4. A

    Help Needed: Multivariate Regression Using R

    I am testing the a couple of CAPM based models for my dissertation, and I have a healthy amount of stocks to regress, 5000 according to my last calculations, they’d have to be done as 75 stocks at a time, (in a portfolio). The number makes it an unrealistic task to accomplish manually, I have...
  5. F

    Help needed to check statistics in thesis

    I would really need someone to check my stats work for my thesis, as I am not entirely sure about what procedures I carried out. Quick overview of my my experiment: - I investigated 2 methods of using worked examples to study the division & multiplication of fractions in 2 year 7...
  6. L

    Need Help Statistics Homework

    Hi, This is my test for homework on statistics i'll be very grateful if someone can help me with it
  7. M

    Skewness in SPSS - SPSS answers differently in multiple PC

    'm wanna calculate the Skewness of 10 data(number); But SPSS calculate it differently in multiple computer!!! The Numbers: 239.00, 176.00, 235.00, 217.00, 234.00, 216.00, 318.00, 190.00, 181.00, 225.00. I followed this steps: Analysis--->Descriptive...
  8. P

    Probability Applications - Drawing from a Deck of Cards

    Hi! I am having trouble figuring out how to go about solving the following problem: "Find the probability of obtaining the given 5-card poker hand. - three of a kind" I have tried several different ways, most recently C(52,3) x C(13,4) x C(4,3) as well as C(4,3)/C(52,2)...
  9. G

    Composite Hypothesis Testing Problem

    Hello guys, So I have this problem I am trying to solve and its
  10. L

    which country consumes drinks the most and the least ??

    Do you know which country consumes the most and the least milk Finland - 361.19 Kg and Maldives - 79.1 Kg Do you know which country consumes the most and the least tea Turkey - 6.87 Kg and South Sudan - 0.0001 Kg Do you know which country consumes the most and the least coffee...
  11. O

    dice rolling odds. please help!

    Suppose you have a FIVE sided dice. One of the sides has a star on it, the other four sides are blank. Suppose you rolled it 10 times. What are the odds that you would roll the star 4 out of the 10 times? can't figure this out, thank you so much!
  12. N

    Dealing with missing value in dataset

    My dataset contains matrix of 1k x 1k and each points having value ranging from 1 to 100. if value is 1, means that point value is lost. To recover this lost value I have another datset file biult from previous datasets history. this file contains mapping for 1 to 100 to some status value...
  13. M

    Just a guy from Sweden

    Hello fellow geniuses I live in Sweden and have been a Software Engineer for more than 10 years now. I am starting to learn about statistics and probabilities to hopefully change jobs in the next few years as I am fed up with software engineering since its very slippery slope and changes all...
  14. S

    Dissertation Results Comparisons - which SPSS method should I use?

    Hi everyone, I'm in my final year as a Psychology student aspiring to be a cognitive neuroscientist (accepted to birmingham university provided I get my 2.1 class honours :D), firstly I'd like to thank you for your time to read this (especially since there is a lot of reading to be done, I...
  15. E

    margin of error

    I have two questions as follows: *Is there a way to apply the margin of error to achieve 99.99% level of confidence? *Can I use the margin of error to raise the level of confidence to 99%? Thanks.
  16. K

    SPSS help

    Hi, I just have a few quick questions. Statistics is not my best subject...at all, and I could REALLY use the help. I am currently in Research Methods and I have stupid, simple questions that I could use the answers too. My question on my homework is, there are 40 participants split up into...
  17. L

    Help with choosing a model

    Hello, I apologize if I am posting in the incorrect place. If so, could someone please direct me or move this thread? Or if something similar has been asked can someone link me to the thread? I am an accountant/finance guy and my knowledge of statistics and quant analysis is limited to...
  18. J

    A survey where participants circled at least one answer as the question asked

    I have surveys I am working on. One of the questions asks the participants to circle religious themes that appeals to them and also that they should circle all that apply. So some of the participants circled at least 2 options just because the question asked them to do so. How do i record this...
  19. L

    Need more statistics of India

    Could anyone list me some interesting statistics of indian population ??
  20. F

    Hypergeometric distribution

    Hi, I hope you can help, i have an assignment i can not solve: You proffessor in sample theory think that their is 400 students 2 years ago, where 20 of them who smoke. Now their i made an research in my class, and out the 25 asked, 2 people said that they smoke. Assume that those 25...