All Questions
6
questions
4
votes
1
answer
164
views
T-Test or U-Test
I have a number of items that are based on a Likert scale, with values ranging from 1 = not at all to 5 = very much so. I would like to compare answers to these questions between two groups. I would ...
- 125
1
vote
1
answer
722
views
How to find the difference between two set of scores of a single participant?
What I am trying to do?
I have a data set which consists of only one undergraduate student's all courses scores. Let's assume, he has completed about 70 courses where 40 courses are related to ...
- 294
0
votes
1
answer
106
views
Comparing capture rates in 2 groups: which test?
I am comparing rate of capture (animal captures per hour) between two years. I'm interested in determining whether there is a difference between rate of capture between the two years. A survey night ...
- 105
6
votes
2
answers
4k
views
How to interpret Mann-Whitney's statistical significance if median is equal?
Testing the difference between the observations of two groups by using Mann-Whitney Test has given the following output (from minitab):
...
1
vote
0
answers
244
views
What statistical analysis should I use for this (attached) dataset?
I have a dataset of 815 positive examples and 9492 negative examples for a certain class. Each example is represented by 12 features and a target label (i.e. TRUE/FALSE). The dataset is in a CSV file ...
6
votes
2
answers
3k
views
How to test group differences when neither parametric nor nonparametric assumptions are met?
Consider following example. We asked 50 men and 50 women one question and they answered on 5 point likert scale (1 is completely disagree and 5 completely agree).
Suppose that 50 men responded 20 ...
- 3,989