Dear friends,
I am a biologist and I am reading about sample size calculations.
I see this formula: https://www.qualtrics.com/blog/determining-sample-size/ and in it is using a Z score.
I would like to know if it is expected, in this case, a normal distribution.
If yes.... how to calculate sample size from non normal distributions?
Thanks for any help!
Prof. Dr. J. C. VOLTOLINI
Grupo de Pesquisa e Ensino em Biologia da Conservação - ECOTROP
Universidade de Taubaté, Departamento de Biologia Taubaté, SP.
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