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# Identification of Experimental Design

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FLOWER PRODUCTION OF DWARF SCHRUBS

Dwarf shrubs are popular with model home landscapers. Stetson University researchers conducted an experiement to determine the effects of fire on the schrub's growth. Twelve experimental plots of land were selected in a pasture where the shrub is abundant. Within each plot, three dwarf shrubs were randomly selected and treated as follows: one shrub was subjected to fire, another to clipping, and the third was left unmanipulated (a control). After 5 months, the number of flowers produced by each of the 36 shrubs was determined. The objective of the study was to compare the mean number of flowers produced by dwarf shrubs for the three treatments (fire, clipping, and control).

a) Identify the type of experiemental design employed, including the treatments, repsonse variable, and experiemental units.

b) Illustrate the layout of the design using a graphic similar to Figure 8.15 (Figure 8.15 is attached). (I recreated the figure the best that I could--I am not concerned that the figure look exactly like this--I just need to illustrate this some way).

c) The ANOVA of the data resulted in a test statistic of F= 5.42 for treatments, with an associated p-value of p = .009. Interpret this result.

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#### Solution Summary

The solution describes the identification of experimental design to a given scenario.

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