statistical analysis

  1. M

    Probability of goals in a football match?

    I am trying to work out the probability of teams scoring a goal in a football match. Obviously there are many factors to consider, and the probability is impossible to predict correctly as there are many factors that will change in a football match. However i want to figure out the probability...
  2. C

    Statistical significance of deviation from a complex-valued model

    I have complex-valued data. At each one of about 100 linearly spaced x values, I have a corresponding measurement of a complex quantity with well-defined Gaussian uncertainties on both the real and complex parts. For the simplest applicable physical model, the data should be described by a...
  3. G

    Finding degree of difference

    I am given two sets of data collected by two different people. The data in includes the variables area, production and productivity of coconut. Now, how do I find the degree of difference? This topic is completely new to me. The data collected by both do not seem to be comparable. The area...
  4. N

    Assistance Requested in Determining the Appropriate Statistical Analysis

    I am developing a mock research proposal. The study will be a RCT of 100 women from a health clinic. Both groups complete an initial questionnaire as well as a follow up questionnaire (same as the baseline minus the socio-demographic portion). Both are asked to set up an appointment for a cancer...
  5. C

    Estimating Multilevel Logistic Regression Models

    The following multilevel logistic model with one explanatory variable at level 1 (individual level) and one explanatory variable at level 2 (group level) : \text{logit}(p_{ij})=\pi_{0j}+\pi_{1j}x_{ij}\ldots (1) \pi_{0j}=\gamma_{00}+\gamma_{01}z_j+u_{0j}\ldots (2)...
  6. R

    Need quick help for completing thesis in time

    Under statistical analysis this was the revised statement from my professor i cant understand what the % of cases mean ? Is it the number of participants? there where many participants,but i selected only a group of participants from the data set. Can someone help ? SPSS for windows (IBM...
  7. Y

    Help on stats for research model needed

    I am in need of a quick statistical advice for a study I planned, and I hope you can help me a bit with it. I'd really appreciate your expertise. The research is on nudging (subtle psychological manipulations). My model is attached to the post. The model looks kind of funny, so let me...
  8. S

    Mann Whitney U test and Spearman test using GraphPad prism 6 interpretation

    I have analyzed two biological sample (Soil 1 and Soil 2) by Mann-Whitney U test and Spearman test using GraphPad Prism 6 software. I got following result For Mann-Whitney test Table Analyzed One-way ANOVA data Column B Soil 2 vs. vs. Column A Soil 1 Mann Whitney test P value < 0.0001 Exact...
  9. S

    What statistical analysis to use for a ordinal scale questionnaire?

    Dear Experts, Im a noob when it comes to statistics. So please pardon my lack of knowledge in this post. I need to do a statistical analysis on a set of questionnaires. There are 3 sets of questionnaires for 3 different populations (Human Resource Reps, Managers, Employees). My hypothesis...
  10. J

    One-way ANOVA and planned comparisons - HELP!

    Hi all, I'm currently running a Psychology experiment: the effect of background music on memory and mood. I will be using SPSS to conduct two one-way ANOVAs (music + mood / music + memory), w/ planned comparisons. However, I also want to see the effect of mood on memory but I don't know how...
  11. S

    statistical analyis of weather data

    Hello, I made ambient temperature and relative humidity measurements using a sensor, next to a highly accurate meteorological station and i want to test the accuracy of my data in respect to the meteorological station (assumed as the "true" value). Practically, I have 2 sets of data, one...
  12. M

    Benchmarking and Statistical Difference

    Hey everyone, I have a few issues and would really appreciate your help :) Thank you very much ! So here it goes : I have two levels ( A and B ), in different fiscal years ( 2007 - 2011 ) and approximately 15 variables. I would like to calculate the mean, variance, kurtosis and...
  13. Eaners

    Choosing an appropriate test: MANOVA? ANCOVA? Something else?

    I am performing a "dry run" statistical analysis on my dissertation data pretest, and I'm looking for a little guidance regarding the specific analyses I need to perform. I have three primary variables: Environment. Categorical, 1 of 3 conditions. Independent, assigned by experimenter...
  14. C

    interpretation of intercept and regression coefficient

    This is a multiple linear regression problem with two independent variables. dependent: blood pressure independent: stress and age The raw regression coefficients for x1(stress) and x2(age) are 1.373(stress) and 0.581(age) The intercept is (0,68.969) I need to interpret the values I...
  15. S

    4 variables, 2 surveys.. how to link? please help!

    hi :wave: i have 2 surveys. The data is collected from both managers and subordinates, the first one has just one variable (moderator) and the 2nd has 3 variables (mediator, independent variable and dependent variable ) i have 1 independent variable , 1 moderator, 1 mediator and 1 outcome...
  16. A

    How do you define a statistical way to ensure that the worst case are captured??

    I need a recommendation which addresses the variability of results. There is variability associated with these results. What I specifically need is help to define a statistical way to ensure that the worst case is captured, which can then be used in future testing and we can be sure that we...
  17. S

    How can confirm the data in the table is statistically significant?

    Hi, Please find the table document. https://www.dropbox.com/s/s22obnlizefeejj/stat%20check.xlsx Numbers in bracket refers to number incidents in a particular stages occurred over months in a year under each category C1, C2, C3. Total number of INCIDENCE is 240. January month incidences (142 +...
  18. R

    Weighted Kappas...please help!

    Hello! I've looked all over regarding how to do this but am still coming up short. Please help! I have 16 data points. I have provided the weights!! Please help! This is huge!!!! Data Point Weight Component 1 .33 A 2 .66...
  19. O

    Making sense of the data...Data analysis

    Dear Experts, I have data for a 12 months study done on 2 wastewater (Plant A and Plant B—Final Effluent and Discharge Point) treatment plants. Physiochemical (13 parameters tested) and Microbiological(bacterial) data were collected. Also there is the recommended standards against which all...
  20. M

    Time series analysis with external events in R

    I have a time series of daily website visitors and several different marketing events (some continuous for several days). I would like to determine what impact did those marketing events have on website visitors dynamics. What approach would you suggest in terms of analysis ? I'm working with R...