The authors of the article Dynamics of Canopy Structureand Light Interception in Pinus
Chapter 9, Problem 68(choose chapter or problem)
The authors of the article Dynamics of Canopy Structureand Light Interception in Pinus elliotti, North Florida(Ecological Monographs, 1991: 3351) planned an experimentto determine the effect of fertilizer on a measure ofleaf area. A number of plots were available for the study,and half were selected at random to be fertilized. To ensurethat the plots to receive the fertilizer and the control plotswere similar, before beginning the experiment tree density(the number of trees per hectare) was recorded for eightplots to be fertilized and eight control plots, resulting inthe given data. Minitab output follows.a. Construct a comparative boxplot and comment on anyinteresting features.b. Would you conclude that there is a significant differencein the mean tree density for fertilizer and control plots?Use .c. Interpret the given confidence interval
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