8 is the degrees of freedom.
What is meant by hypothesis testing?
- Hypothesis testing is a form of statistical inference that uses data from a sample to draw conclusions about a population parameter or a population probability distribution.
- First, a tentative assumption is made about the parameter or distribution. This assumption is called the null hypothesis and is denoted by H0.
- Hypothesis testing is a tool for making statistical inferences about the population data. It is an analysis tool that tests assumptions and determines how likely something is within a given standard of accuracy.
- Hypothesis testing provides a way to verify whether the results of an experiment are valid.
In goodness of fit test the degree of freedom is the number of categories minus 1.
degree of freedom = k-1 = 8
Learn more about Hypothesis testing
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