f-test

  1. E

    Calculating F-Value in multiple regression model

    Dear all, I am currently studying for my exam econometrics and i cant find a formula on how to calculate an F value. This is the question: Suppose someone is interested in the relationship between the UK real consumption growth (∆Ct), real income growth (∆Yt) and the growth in real investment...
  2. C

    Critical F value for testing Full vs Reduced models.

    Full Model: Y=b0+b1x1+b2x2+b3x3+b4x4 Supposed the sample size is 16. What is the critical F value for testing the full versus the following model: Y=b0+b2x2+b3x3+b4x4?
  3. M

    Degrees of freedom for an F-test using the Fama-MacBeth procedure

    I am currently writing my master thesis and in the process use the Fama-MacBeth (1973) procedure to obtain risk premia for my factors of interest. Data structure: I have panel data with excess returns for 50 portfolios (my cross-section) for each point in time (time-series). In the same panel...
  4. P

    Difference between expected spending and observed spending. What kind of statistical

    I would like some advice from you about what kind of statistical analysis I could do about that data. My case is as follows: According to a research I have the information that the financial health of the company for a specific type of activity should put the following percentages on...
  5. T

    Treatment-experiment interactions in multivariate data

    I have a data set of multivariate data (4 treatments, 3 samples per treatment, 14 variables, the variables are concentrations of different metabolites). I have 2 repetitions of the same experiment, performed in the exact same way. I would like see if the two data sets from the two repetitions...
  6. N

    Need help with testing for significant differences

    Hey all, it would be very nice if someone could help me! I want to test for significant differences in a dataset where I have 4 different locations for which I assessed the total weight (kg). So I have A-1 (kg), A-2 (kg), B-1 (kg) and B-2 (kg). I subdivided those then into different...
  7. S

    F-Test for SLR & MLR?

    I am trying to finish a homework problem for a grad level stats class and can't seem to find an answer anywhere to this question written in plain English. What is the difference between an F-test in SLR versus in MLR? It seems like this should be cut and dry, but after looking in two...
  8. S

    Which test to run to check if sales incentives working across two quarters?

    hi all, I have a 200 person sales force selling product A. However, we acquired another services company which provide services to product A. Now our sales force is expected to sell product A and also try selling as many services as possible (If a sales person is selling X units of products...
  9. S

    Statistical Techniques for analysis

    Hi, Please can somebody help me. I have been given a project to do and I am struggling to know which statical techniques to use for analysis. The project is based around me acting as a consultant and identifying which property market segment has the greatest investment potential. I have been...
  10. C

    t-test or f-test

    Hi all, Apologies for the nature of my post but I'm a relative beginner to statistical tests. What I would like to know, is if I have two sets of data (as I'm a microbiologist, the data sets are likely to be bacterial colony size measurements on two different agar plate types), why would I...
  11. O

    Help with fitting linear models and F-tests in R?

    Hello! I need some assistance with these problems dealing with the following data set: "Brains" <- structure(list(Species = structure(c(7, 11, 12, 19, 24, 25, 26, 34, 37, 8, 3, 20, 30, 6, 36, 23, 15, 9, 18, 28, 32, 35, 39, 14, 31, 38, 27, 5, 4, 21, 2, 13, 10, 17, 22, 33, 29, 1, 16)...
  12. C

    Difference between incremental F-test and F-test??

    Is there any difference between incremental f-test and F-test ??