The following data represent the pH of rain for a random sample of 12 rain dates in Tucker County, West Virginia. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates that there are no outliers.

4.58 5.19 5.05 4.80 4.77 4.77

5.72 4.75 5.02 4.74 4.76 4.56

Determine a point estimate for the population mean pH of rainwater in Tucker County.

Construct and interpret a 95% confidence interval for the mean pH of rainwater in Tucker County, West Virginia.