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Results tagged with survey
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user 4559
An instrument used to collect a sample from a population. Surveying often refers to sampling of human populations and is primarily done by administering questionnaires or interviewing individuals.
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How to handle multiple comparisons in a three-arm clinical trial?
You could use Kruskal–Wallis test to perform a test for
$$
H_0: m_1 = m_2 = m_3 \> ,
$$
where $m_i$ is the median of the $i$th group.
If the $p$-value is $< 0.05$, you could conduct a post hoc te …
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