Question: Import the black spruce case study data Spruce.csv posted in the Homework section into R. (a) make histogram and normal quantile plot for the height

Import the black spruce case study data "Spruce.csv" posted in the Homework section into R. (a) make histogram and normal quantile plot for the height changes of the seedlings. Is the distribution approximately normal? (b) make boxplot to compare the distribution of the change in diameters of the seedlings grouped by whether or not they were in fertilized plots.

by R.

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