Acid rain is a problem for many areas. Rain is described as being acidic if its pH
Question:
Acid rain is a problem for many areas. Rain is described as being acidic if its pH level is below 5.2. In a city, a biologist takes 12 water samples and measures the pH.
Test, at the 5% significance level, whether the rain in this city is acidic.
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Step by Step Answer:
To test whether the rain in this city is acidic we need to perform a hypothesis test Null Hypothesis ...View the full answer
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Related Book For 
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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