minitab

  1. S

    Ranking/sorting of variables after 'ordinance regression'

    I have run regression and came up with 5 out of the 9 varibles are having an impacat on the final output (0,1,2). I want to see the order in which they have impact. example: variable 1 is the most important and variable 3 is 2nd and variable 5 is 3rd and so on. How should I accomplish this/...
  2. D

    Help with Minitab Taguchi aplication

    Hello, I have a question about using minitab DOE Taguchi design aplication. When I have a three factor theree level (L9) Taguchi design and apply Minitab for the analysis I have a problem to understand the results of analysis for the coefficients Term Coef SE Coef T P...
  3. R

    Not sure about what test....

    Hi everybody, I need to analyze possible differences in the invertebrates populations living in 3 different environmental treatments (3 plus 3 replica). A subsample containing invertebrates species is taken every week for a total of 10 sampling events. Therefore 10 invertebrates populations...
  4. R

    Which test to be used?

    Hi everybody, I need to analyze possible differences in the invertebrates populations living in 3 different environmental treatments (3 plus 3 replica). A subsample containing invertebrates species is taken every week for a total of 10 sampling events. Therefore 10 invertebrates populations for...
  5. D

    Minitab Quadratic Regression Model- Specifying the y-Intercept

    Hello, I am using Minitab v16.1.1 to perform a general regression analysis, and I was wondering, is it possible to customize a quadratic regression model to have a specific non-zero value? I would like to set my model's y-intercept to 1. Originally I was fitting a model to my data in...
  6. M

    Which test to use in minitab?

    I need to run a test in Minitab on my data to find out the number of values that are above a certain score in order to see whether i can accept the data frame. Can anybody help me, I am new to minitab. Any help would be much appreciated.
  7. L

    Data will not normalize & need to run ANOVA

    Hello, I have a set of data that I need to run a 2-way ANOVA on. My data is very highly skewed to the right, so it does not follow a normal distribution. I have tried just about every transformation I can find, and cannot get my data to pass the K-S normality test. I wish I could just run a...
  8. W

    Minitab/Excel to Analyze Data - What do I use?

    Hi, I've been collecting data from a couple different experiments I've been running the lab. I run a mixing system through runs with solid material. The material is the same but some of the properties keep changing when I put it in (pH, %-solids) and are recorded through tests. I take T=0...
  9. I

    [Minitab] - Sample data for discriminant analisys in Minitab 15

    Hi, I'm a grad student in MBA also a new member of the forum. I need some sample data for discriminant analisys in Minitab 15 but it's nowhere to be found. If you would be so kind to lead me somewhere, some kind of sample data and a few examples would be great help. Great forum, btw.
  10. D

    Spearman's Rank Correlation P value on Minitab

    Hi there, im doing a project on the relationship between plant height and their nearest neighbour. As i couldn't normalise the data i've opted to use Spearman's instead of Pearson's. Im using a large dataset and do appear to be finding a relationship, unfortunatly though im getting p values of 0...
  11. W

    Equalitiy of Mean

    We are interested on focusing solely upon testing the equalitity of the mean roughness of the surface of the wafers in the 5 position. 1. Describe, giving all details, how you would formlate and test this hypothesis. 2. Perform your analysis using Minitabe. What do you conclude?
  12. D

    Quantitative analysis help please!

    - edit - Thanks anyway!
  13. J

    I believe Kruskal-Wallis is the right choice, but where do I go from there?

    Assumption: Tertiary wing feathers are warmer Hypotheses: 1) During cold weather feather mites will accumulate on the tertiary wing feather 2) During warm weather feather mites will spread evenly over the entire wing In winter 2010-11 and summer 2011 I took exact counts of feather mites for...