Emissions of sulfur dioxide by industry set 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. Typical rain is somewhat acidic, so acid rain is 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 x = 4.8. Is this good evidence that the mean pH u for all rainy days is less than 5.0? The answer depends on the size of the sample. Use the P-Value of a Test of Significance applet for your computations.Enter H0: y = 5, Ha: ,u