Use the following figure for questions 24 and 25.
-According to the experimental results shown in the figure, what factor best explains the reduction in plant species richness with addition of fertilizer?
Definitions:
Sample Mean
The arithmetic average of a set of sample values, used as an estimate of the population mean.
Population Mean
The average value of a characteristic in the entire population of interest.
Unbiased Estimator
A statistic used to estimate a population parameter that is expected to be equal to the true parameter value on average.
Larger Sample Sizes
Referring to the use of a greater number of observations in a study, which can enhance the reliability and precision of statistical estimates.
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