3. [- Points] DETAILS MENDSTATC4 9.E.064. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Acid rain, caused by the reaction of certain air pollutants with rainwater, is a growing problem in the United States. Pure rain falling through clean air registers a pH value of 5.7 (pH is a measure of acidity: 0 is acid; 14 is alkaline). A sample of n = 50 rainfalls produced pH readings with )7 = 3.3 and s = 0.5. Do the data provide sufficient evidence to indicate that the mean pH for rainfalls is more acidic (Ha: y 5.7 0 H01.\" at 5.7 versus Ha: ,u 5.7 versus Ha: i1 Z