mann whitney u test

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    Test wanted for comparing algorithms

    Study design Suppose I want to compare algorithm runtime performance (measured in seconds) of different algorithms for the same problem type. There are several problem instances for this problem type on which the algorithms are tested and performance is measured. Possible tests As far as I...
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    Matt Whiteny U test Vs T test

    Hello fellow statisticians, Problem definition: I need to test whether the difference between the "mean" utilization metrics of two machines is statistically significant. Given Data: Utilisation data is available for two machines for more than 100 days. Therefore, the mean, standard...
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    Comparing habitat use across two different locations - mann whitney U?

    Hi, I'm really stuck with what test to use with my data. I have data on habitat use of 6 different habitat types across 2 locations and I'm unsure what test is most suitable. I thought initially mann whitney U but this doesn't seem to be working for me. I've attached the table below so you...
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    Mann Whitney U: can mean ranks be used along with medians in similarly shaped distrib

    Dear TalkStatsers, I would be deeply grateful if you could help me with a simple question I have!!! From what I have read about Mann Whitney U, it is crucial for the reporting of the results to know whether your two distributions (i.e., the distribution of scores for both groups of the...
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    paired or unpaired?

    Hi, Need some advice, if I'm comparing species abundance in the same location across two different seasons is this paired or non-paired for Mann-Whitney-U? Thanks in advance
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    Checking my approach - Mann whitney

    Hi everyone I was wondering if I had used the correct approach to analyse my data. I have four groups of people answering a survey and taking part in several tests. I am analyzing their test scores looking for differences between the groups. I have used the mann whitney test. Is this OK? Also...
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    Chi square Or Mann U Whitney for comparing student grades

    Hi, for my study I have obtained the UK classification grades that are used at University. I've obtained data from two groups of students first generation and continuing generation. I want to see if there is a difference I'n grades between the groups. The problem I have is that I've obtained...
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    Paired or unpaired data and questions about test with >2 groups

    Hi guys! I am here for some help with my statistics. I am currently working on a small project involving the expression of surface markers on cells in donated blood from different individuals. Basically, for each individual, I will keep a part of the blood untreated and apply two different...