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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7.3 - Problem 7e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7.3 - Problem 7e

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# The coefficient of absorption (COA) for a clay brick is

ISBN: 9780073401331 38

## Solution for problem 7E Chapter 7.3

Statistics for Engineers and Scientists | 4th Edition

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Problem 7E

Problem 7E

The coefficient of absorption (COA) for a clay brick is the ratio of the amount of cold water to the amount of boiling water that the brick will absorb. The article “Effects of Waste Glass Additions on the Properties and Durability of Fired Clay Brick” (S. Chidiac and L. Federico. Can J Civ Eng, 2007:1458-1466) presents measurements of the (COA) and the pore volume (in cm3/g) for seven bricks. The results are presented in the following table.

 Pore volume COA 1.750 0.80 1.632 0.78 1.594 0.77 1.623 0.75 1.495 0.71 1.465 0.66 1.272 0.63

a. Compute the least-squares line for predicting COA from pore volume.

b. Compute the error standard deviation estimate s.

c. Compute a 95% confidence interval for the slope.

d. Find a 95% confidence interval for the mean COA for bricks with pore volume 1.5 cm3/g.

e. Can you conclude that the mean COA for bricks with pore volume 1.5 cm3/g is less than 0.75? Perform a hypothesis test and report the P-value.

f. Find a 95% prediction interval for the COA of a particular brick whose pore volume is 1.5 cm3/g.

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##### ISBN: 9780073401331

This full solution covers the following key subjects: coa, pore, Volume, brick, bricks. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. The answer to “The coefficient of absorption (COA) for a clay brick is the ratio of the amount of cold water to the amount of boiling water that the brick will absorb. The article “Effects of Waste Glass Additions on the Properties and Durability of Fired Clay Brick” (S. Chidiac and L. Federico. Can J Civ Eng, 2007:1458-1466) presents measurements of the (COA) and the pore volume (in cm3/g) for seven bricks. The results are presented in the following table.Pore volumeCOA1.7500.801.6320.781.5940.771.6230.751.4950.711.4650.661.2720.63a. Compute the least-squares line for predicting COA from pore volume.________________b. Compute the error standard deviation estimate s.________________c. Compute a 95% confidence interval for the slope.________________d. Find a 95% confidence interval for the mean COA for bricks with pore volume 1.5 cm3/g.________________e. Can you conclude that the mean COA for bricks with pore volume 1.5 cm3/g is less than 0.75? Perform a hypothesis test and report the P-value.________________f. Find a 95% prediction interval for the COA of a particular brick whose pore volume is 1.5 cm3/g.” is broken down into a number of easy to follow steps, and 163 words. Since the solution to 7E from 7.3 chapter was answered, more than 588 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. The full step-by-step solution to problem: 7E from chapter: 7.3 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331.

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