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We sample populations of monarch butterflies in 20 counties in Minnesota and 20 counties in South...

We sample populations of monarch butterflies in 20 counties in Minnesota and 20 counties in South Dakota. Data are displayed as number of butterflies per square mile, in each county. To calculate which state has the highest average per-county butterfly population, we consider which statistical tests could possibly be used. Considering not merely which test is best, but which are possible, you could use: Question 10 options: Regression only ANOVA only ANOVA or t-test T-test only

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There are 2 independent groups of monarch butterflies, hence we can use ANOVA or t-test.

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