15.36 pH Levels in Water A sampling of the acidity of rain for 10 randomly selected rainfalls...
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15.36 pH Levels in Water A sampling of the acidity of rain for 10 randomly selected rainfalls was recorded at three different locations in Canada: The prairies, the Atlantic region, and the West Coast. The pH readings for these 30 rainfalls are shown in the table. (NOTE: pH readings range from 0 to 14; 0 is acid, 14 is alkaline. Pure water falling through clean air has a pH reading of 5.7.)
a. Do the data present sufficient evidence to indicate differences in the levels of acidity in rainfalls in the three different locations? Test using the Kruskal- Wallis H test.
b. Find the approximate p-value for the test in part a and interpret it.
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Related Book For
Introduction To Probability And Statistics
ISBN: 9780176509804
3rd Edition
Authors: William Mendenhall
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