An analysis was conducted by the Statistics Consulting Center at Virginia Polytechnic Institute and State University in conjunction with the Department of Forestry. A certain treatment was applied to a set of tree stumps. The chemical Garlon was used with the purpose of regenerating the roots of the stumps. A spray was used with four levels of Garlon concentration. After a period of time, the height of the shoots was observed. Treat the following data as a one-factor analysis of variance. Test to see if the concentration of Garlon has a significant impact on the height of the shoots. Use a =0.05.

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Garlon Level 1 2 3 2.87 3.27 2.39 3.05 2.66 1.91 2.31 3.91 0.91 3.15 2.89 2.43 0.01 2.04 2.00 1.89