The pH factor is a measure of the acidity and alkalinity of water. A reading of 7.0 is neutral; values in excess of 7.0 indicate alkalinity; those below 7.0 imply acidity. In one study, it is mentioned that the best chance of catching bass occurs when the pH of the water is in the range 7.5 to 7.9. Suppose your suspect that acid rain is lowering the pH of your favourite fishing spot and you wish to determine whether the pH is less than 7.5. You obtained 10 samples and got the following data: 7.3, 7.4, 7.2, 7.0, 7.5,7.4,7.3,7.3,7.2 and 7.1. Use 0.05 alpha. a. State the alternative and null hypothesis. b. Is the pH of the water samples less than 7.5?
The pH factor is a measure of the acidity and alkalinity of water. A reading of 7.0 is neutral; values in excess of 7.0 indicate alkalinity; those below 7.0 imply acidity. In one study, it is mentioned that the best chance of catching bass occurs when the pH of the water is in the range 7.5 to 7.9. Suppose your suspect that acid rain is lowering the pH of your favourite fishing spot and you wish to determine whether the pH is less than 7.5. You obtained 10 samples and got the following data: 7.3, 7.4, 7.2, 7.0, 7.5,7.4,7.3,7.3,7.2 and 7.1. Use 0.05 alpha. a. State the alternative and null hypothesis. b. Is the pH of the water samples less than 7.5?
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter13: Acids And Bases
Section: Chapter Questions
Problem 9RQ: What is a salt? List some anions that behave as weak bases in water. List some anions that have no...
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The pH factor is a measure of the acidity and alkalinity of water. A reading of 7.0 is neutral; values in excess
of 7.0 indicate alkalinity; those below 7.0 imply acidity. In one study, it is mentioned that the best chance
of catching bass occurs when the pH of the water is in the range 7.5 to 7.9. Suppose your suspect that acid
rain is lowering the pH of your favourite fishing spot and you wish to determine whether the pH is less
than 7.5. You obtained 10 samples and got the following data: 7.3, 7.4, 7.2, 7.0, 7.5,7.4,7.3,7.3,7.2 and
7.1. Use 0.05 alpha.
a. State the alternative and null hypothesis.
b. Is the pH of the water samples less than 7.5?
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