Acid rain A study of the effects of acid rain on trees inthe Hopkins Forest shows that 25 of 100 trees sampledexhibited some sort of damage from acid rain. This rateseemed to be higher than the 15% quoted in a recent Environmetrics article on the average proportion of dam-aged trees in the Northeast. Does the sample suggest that trees in the Hopkins Forest are more susceptible thantrees from the rest of the region? Comment, and write upyour own conclusions based on an appropriate confidence interval as well as a hypothesis test. Include any assump-tions you made about the data.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.