Which nonparametric or parametric test should I use?

Parametric tests are suitable for normally distributed data. Nonparametric tests are suitable for any continuous data, based on ranks of the data values. Because of this, nonparametric tests are independent of the scale and the distribution of the data.
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https://www.surveygizmo.com/resources/blog/how-to-choose-between-parametric-nonparametric-tests/#:~:text=Parametric%20tests%20are%20suitable%20for%20normally%20distributed%20data.,the%20scale%20and%20the%20distribution%20of%20the%20data.
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