The pH of rain, measured at a weather station in Michigan, was observed for 39 consecutive rain storms (rain_pH.csv). The sample mean is 4.6982 and the sample variance is 0.39623. c) Test the research hypothesis that the mean pH is less than 5.00, with a = 0.01. d) This is observational data, and we are presuming they are independent observations from the population of possible (potential) rain storms. Might the independence be incorrect?
