Which statistical test to use to compare efficiency of 9 antibiotics? I compared each antibiotic to...

Which statistical test to use to compare efficiency of 9 antibiotics? I compared each antibiotic to control using t test and got a significant result but which test to use to compare different antibiotics among each other?

Expert Solution

For comparing the efficiency of 9 antibiotics, one way ANOVA is used as follows:

H0:Null Hypothesis: (There is no significant difference in the the efficiency of 9 antibiotics)

HA: Alternative Hypothesis: (at least one mean is different from other 8 means) (There is significant difference in the the efficiency of 9 antibiotics)

In case the calculated value of F is less than critical value of F, the difference is not significant and conclude that there is no significant difference in the the efficiency of 9 antibiotics.

In case the calculated value of F is greater than critical value of F, the difference is significant and conclude that there is significant difference in the the efficiency of 9 antibiotics. In that case case, in order to find out which antibiotic among the 9 antibiotics is significant, Turkey's HSD (Honest Significant Difference) Post Hoc Test is to be conducted.

orchestra answered 2 years ago

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