Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
alternative hypothesis
This term is a technical expression used exclusively within the framework of null hypothesis significance testing (NHST). It represents the researcher's actual prediction or the claim that a specific effect, difference, or relationship exists within a population. It stands in direct opposition to the null hypothesis, which assumes no effect.
In a practical research setting, the alternative hypothesis is not proven true in a definitive sense; rather, it is supported when the evidence is strong enough to make the null hypothesis statistically improbable. It is typically denoted by the symbol H1 or Ha in academic papers and statistical reports.
Meanings
In statistics, the statement that there is a significant effect or relationship between variables, which is accepted if the null hypothesis is rejected.
Examples
The researcher formulated an alternative hypothesis suggesting that the new drug reduces blood pressure more effectively than the placebo.
Health
School Life
I wonder if my alternative hypothesis about the market trend will actually be supported by the data.
Business
The alternative hypothesis states that there is a significant difference between the two groups.
none
We need to clearly define the alternative hypothesis before starting the experiment.
School Life
The data strongly supports the alternative hypothesis that the temperature increase affects plant growth.
none
School Life
none
The detective considered an alternative hypothesis regarding the suspect's motive for the crime.
Detective