biostats

  1. K

    Can I make a comparison among groups which the control group's data was set to be 100%?

    Hello I want to make a comparison between the groups. However, in the control group, all of the data was set to be 100% and the data of the other groups is the proportion compared to the control group. So the data will look like, (just for example) control group: 100%, 100%, 100%, 100%, 100%...
  2. J

    Modeling and predicting pathology from multivariate clinical data

    Hello, I have a clinical data set that consists of 5 clinical measurements on thousands of tissue samples. Furthermore, each sample has a pathology diagnosis that is 1 of 5 possible diagnoses (all different types of tumors). I am interested in predicting which pathologic class future samples...
  3. A

    estimate of measures

    Hello everyone, I am a statistics student, I'm studying for a project in my University. I have to analyze the data, I have available the measures in millimeters corrisponding two different types of objects, of course I have already done tests to groups such as t-test, actually these organized...
  4. 3

    Help with Biostats Hw question

    The research team has considered your answers to the above. They’ve narrowed their interest to two outcomes (for now): Number of episodes of early rejection symptoms and rejection status. However, they want to know how many subjects they should recruit for each outcome. For simplicity, they...
  5. R

    Pearsons Correlation, Two-way ANOVA, Linear Regression Test, Chi-Square Test or None

    During research, you have asked your participants whether or not they have ever experienced financial difficulties (yes or no). You have three age-groups (16-20; 21-25; 26-30), and you predict that those in the 26-30 group have a greater risk of experiencing financial difficulties than those who...
  6. S

    One or Two Way ANOVA?

    Hi all, Just had a quick question regarding whether or not I should be using a one or two way ANOVA to see the effect of caffeine on heart rate. My groups are: control, coffee, energy drink. My sample size is 50 for each group and for each individual I tested at the following times: initial...
  7. C

    Appropriate test for two variables

    Hello, This is my first time posting here, so forgive me if I don't include something. I will follow this post and add more information as needed. I want to compare two samples, one is a city, and another is a neighborhood in that city, for the same disease. I have the population size...
  8. R

    Survival analysis advice

    Hi, I'm having trouble wrapping my head around whether my data is censored or not, and interpreting the results of the (possibly inappropriate) model which I have selected to perform a regression. I have data recording incubation survival rates for 4 different penguin colonies, in two...
  9. V

    Correlation between lines:Odd man out

    Dear Friends, I am analyzing the presence of cis element in 1K upstream of some up regulated genes. I have got the number of elements in the smaller bins (50 bases each) of 1K promoter. Now when I am plotting them, I found that at around -800 from 0 (i.e. TSS), there is a sharp increase in...
  10. Q

    Which method to choose?

    I think I figured it out, thanks for all the help though!!