biostats

1. 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. 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. 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. 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. 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. 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. 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...