The following data represent the \(\mathrm{pH}\) of rain for a random sample of 12 rain dates in a particular region. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. The sample standard deviation is \(s=0.330\). Construct and interpret a \(99 \%\) confidence interval for the standard deviation \(\mathrm{pH}\) of rainwater in this region.

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4.65 5.09 5.13 4.88 4.82 4.82 5.74 4.70 5.10 4.75 4.66 4.49