# In a study to compare two different corrosion inhibitors,

## Problem 9E Chapter 5.4

Statistics for Engineers and Scientists | 4th Edition

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Problem 9E

Problem 9E

In a study to compare two different corrosion inhibitors, specimens of stainless steel were immersed for four hours in a solution containing sulfuric acid and a corrosion inhibitor. Forty-seven specimens in the presence of inhibitor A had a mean weight loss of 242 mg and a standard deviation of 20 mg, and 42 specimens in the presence of inhibitor B had a mean weight loss of 220 mg and a standard deviation of 31 mg. Find a 95% confidence interval for the difference in mean weight loss between the two inhibitors.

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##### ISBN: 9780073401331

The answer to “In a study to compare two different corrosion inhibitors, specimens of stainless steel were immersed for four hours in a solution containing sulfuric acid and a corrosion inhibitor. Forty-seven specimens in the presence of inhibitor A had a mean weight loss of 242 mg and a standard deviation of 20 mg, and 42 specimens in the presence of inhibitor B had a mean weight loss of 220 mg and a standard deviation of 31 mg. Find a 95% confidence interval for the difference in mean weight loss between the two inhibitors.” is broken down into a number of easy to follow steps, and 91 words. This full solution covers the following key subjects: inhibitor, weight, loss, specimens, mean. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4th. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The full step-by-step solution to problem: 9E from chapter: 5.4 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. Since the solution to 9E from 5.4 chapter was answered, more than 236 students have viewed the full step-by-step answer.

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