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# The article “Occurrence and Distribution of Ammonium in ISBN: 9780073401331 38

## Solution for problem 14E Chapter 5.4

Statistics for Engineers and Scientists | 4th Edition

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Problem 14E

Problem 14E

The article “Occurrence and Distribution of Ammonium in Iowa Groundwater” (K. Schilling, Water Environment Research, 2002:177-186) describes measurements of ammonium concentrations (in mg/L) at a large number of wells in the state of Iowa. These included 349 alluvial wells and 143 quaternary wells. The concentrations at the alluvial wells averaged 0.27 with a standard deviation of 0.40, and those at the quaternary wells averaged 1.62 with a standard deviation of 1.70. Find a 95% confidence interval for the difference in mean concentrations between alluvial and quaternary wells

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##### ISBN: 9780073401331

This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. Since the solution to 14E from 5.4 chapter was answered, more than 274 students have viewed the full step-by-step answer. This full solution covers the following key subjects: wells, quaternary, concentrations, alluvial, averaged. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. The answer to “The article “Occurrence and Distribution of Ammonium in Iowa Groundwater” (K. Schilling, Water Environment Research, 2002:177-186) describes measurements of ammonium concentrations (in mg/L) at a large number of wells in the state of Iowa. These included 349 alluvial wells and 143 quaternary wells. The concentrations at the alluvial wells averaged 0.27 with a standard deviation of 0.40, and those at the quaternary wells averaged 1.62 with a standard deviation of 1.70. Find a 95% confidence interval for the difference in mean concentrations between alluvial and quaternary wells” is broken down into a number of easy to follow steps, and 87 words. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The full step-by-step solution to problem: 14E from chapter: 5.4 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM.

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