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Rejecting The Null Hypothesis. Critical values can be found in a table of probabilities for the χ2 distribution. We reject it because at a significance level of 003 ie less than a 5 chance the result we obtained could happen too. And rejecting the null hypothesis doesnt automatically make something else true. Earn your degree in less than 12 months and under 11k with competency-based programs.
21The decision point for rejecting the null hypothesis is Athe beta level. In a nutshell you reject the null hypothesis with a low p-value because it indicates your sample data are unusual if the null is true. In short the null hypothesis states that there is no meaningful relationship between two measured phenomena. We reject it because at a significance level of 003 ie less than a 5 chance the result we obtained could happen too. Critical values can be found in a table of probabilities for the χ2 distribution. 22Type I error occurs when a researcher Arejects the null hypothesis when it should be retained.
What does rejecting the null hypothesis mean.
Ctypically 005 or 0001. Dthe null hypothesis level. If the null hypothesis is true the observed and expected frequencies will be close in value and the χ2 statistic will be close to zero. This mirrors the not guilty verdict quite well. Rejecting a null hypothesis. Alternately if the chance was greater than 5 5 times in 100 or more you would fail to reject the null hypothesis and would not accept the alternative hypothesis.