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Analysis of variance (ANOVA)

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This problem uses the weights of poplar trees for Year 1 and Site 1. If we use the weights for Year 2 and site 1, the analysis of variance results are shown above.

Assume we want to use a 0.05 significance level in testing the null hypothesis that the four treatments result in weights with the same population mean.

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Solution Summary

This problem uses the weights of poplar trees for Year 1 and Site 1, then uses the weights for Year 2 and site 1 when the analysis of variance is completed.

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a. What is the null hypothesis?

H0: There is no significant difference in the mean of four treatments

b. What is the alternative hypothesis?

H1: There is ...

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