# students t test

1. ### Student's T-test versus one-way ANOVA

I need help on deciding which statistical test to report. This is not really a statistics problem per say, I've done the calculations already. My problem is I have limited experience with research and publishing and I am getting confusing advice on what to present for my results. I would...
2. ### What happens to T-Crit & T-obt when means decrease or increase? Clues are welcome too

I am having a very hard time with my Stat.Psych. homework regarding Student t Test for single sample, correlated and independent groups. I am not very good at statistical psychology although I do have a solid understanding of basic methods and definitions. However, this is a bit complicated for...
3. ### Application Specific: Strange behaviour of students T-test compared to std.dev plots

Hello all, ******************************************************************** SEE THE FITH POST OF THIS THREAD TO GET A BETTER IDEA OF THE ISSUE ******************************************************************** I am comparing three datasets of length 7201 datapoints each (on images this is...
4. ### How many measurements needed to distingish between two outcomes?

I have a historical dataset of about 500 measurements. Datapoints that turned out to indicate A or B, each have a distribution from which I computed mean and std. If I plot a histogram of these measurements, I have two semi-overlapping gaussian distributions. Those measurements that indicated A...
5. ### [Students T Test] - paired or unpaired unequal variance?

Hi, i have a question as to whether a paired test in this instance is appropriate. Scenario: an experimenter is testing a new treatment to see if it increases a certain property of a substance. The experimenter chooses 4 groups of the substance and takes 3 sample from each group and tests for...