Capítulo 9
Testes de Hipótese
O que é uma Hipótese?
A hypothesis can be a simple sentence or statement about a property or any phenomenon observed or predicted for a population. It is usually a claim about ...
Hipóteses Nula e Alternativa
The actual hypothesis testing begins by considering two hypotheses. They are termed the null hypothesis and the alternative hypothesis. These ...
Região Crítica, Valores Críticos e Nível de Significância
The critical region, critical value, and significance level are interdependent concepts crucial in hypothesis testing.
In hypothesis testing, a sample ...
P-Valor
P-value is one of the most crucial concepts in statistics.
P-value stands for the probability value. P-value is the probability that, if the null ...
Tipos de Teste de Hipótese
There are three types of hypothesis tests: right-tailed, left-tailed, and two-tailed.
When the null and alternative hypotheses are stated, it is observed ...
Tomada de Decisão: Método do p-Valor
The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a ...
Tomada de Decisão: Método Tradicional
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using ...
Hipótese: Aceitar ou Não Rejeitar?
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, ...
Erros em Testes de Hipótese
When performing a hypothesis test, there are four possible outcomes depending on the actual truth (or falseness) of the null hypothesis and the decision ...
Testando uma Afirmação Sobre a Proporção da População
A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population ...
Testando uma Afirmação Sobre a Média: Desvio Padrão de uma População Conhecida
A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be ...
Testando uma Afirmação Sobre a Média: Desvio Padrão de uma População Desconhecida
A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a ...
Testando uma afirmação sobre desvio padrão
A complete procedure to test a claim about population standard deviation or population variance is explained here.
The hypothesis testing for the claim of ...
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