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The following graphs are for data on the species richness in randomly selected r

ID: 3225217 • Letter: T

Question

The following graphs are for data on the species richness in randomly selected rain forest plots, defined as the number of tree species in a plot divided by the number of trees in the plot ANOVA may not be trustworthy for this data. What characteristic of the data makes ANOVA risky? Select all that apply The data is not independent The standard deviations violate out rule of thumb for ANOVA The sample size in each group is less than 30, and at least one of the groups is strongly skewed. The sample size in each group is less than 30, and at least one of the groups has an extreme outlier.

Explanation / Answer

ANOVA for this problem is risky because

the data is not independent

Standard deviation is in control as per ANOVA rules(largest is less than twice of smallest)

even though the data is stongly skewed or having outliers we can run ANOVA test to generate good results

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