The following data gives the pH in rain/sleet/snow for 2004-05 at 20 rural sites on the US
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Question:
The following data gives the pH in rain/sleet/snow for 2004-05 at 20 rural sites on the US west
coast.
5.335
5.345
5.395
5.305
5.315
5.38
5.52
5.19
5.455
5.33
5.36
6.285
5.35
5.125
5.115
5.51
5.34
5.34
5.305
5.265
QUESTION: What test will you suggest to test whether a typical pH value is 5.4 or not? Conduct the test
and conclude.
(Previous question asked to create Q-Q plot to test normality assumption. Since the plot indicates departure from normality, I wanted to do Wilcoxon signed rank test to answer the above question. I'm not sure if Wilcoxon signed rank test is the correct one and if it is, I do not know how to do it on software. Please help.)
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