I have to compare treatments when some have all zero values?

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Ani Amar

Good evening. What is your pre-determined acceptance criteria? Aren't you considering positive isolates only?

Juan Moral

Hello Andrea,

Try to apply the Zar´s Test of multiple comparison of proportions, it is similar to Chi-square Test but for multiple treatments.

Zar JH, 2010. Biostatistical Analysis. New Delhi, India: Pearson

Education India.

Juan