(2 points) Emissions of sulfur dioxide by industry sett off chemical changes in the atmosphere that result in "acid rain

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2 Points Emissions Of Sulfur Dioxide By Industry Sett Off Chemical Changes In The Atmosphere That Result In Acid Rain 1 (99.28 KiB) Viewed 6 times

(2 points) Emissions of sulfur dioxide by industry sett off chemical changes in the atmosphere that result in "acid rain". The acidity of liquids is measured by pH on a scale of 0 to 14. Distilled water has pH 7.0, and lower pH values indicate acidity. Normal rain is somewhat acidic, so acid rain is sometimes defined as rainfall with a pH below 5.0. Suppose that pH measurements of rainfall on different days in a Canadian forest follow a Normal distribution with standard deviation o=0.5. A sample of n days finds that the mean pH is a = 4.8. What are the P- Values for tests of sample sizes n = 5, n = 15 and n = 40? n = 5: n = 15: n = 40: