Two different analytical methods were used to determine residual chlorine in sewage effluents. Both methods were used on the same samples, but each sample came from various locations with differing amounts of contact time with the effluent. Two methods were used to determine the concentration of Cl in mg/L, and the results are shown in the following table: Sample Method A Method B 0.36 1.35 0.39 2 0.84 3 1.76 2.56 3.92 3.35 4.69 4 5.35 8.33 10.70 5 6. 7.70 7 10.52 8 10.92 10.91 a. What type of t test should be used to compare the two methods and why? b. Do the two methods give different results? State and test the appropriate hypotheses. c. Does the conclusion depend on whether the 90%, 95%, or 99% confidence levels are used?

Two different analytical methods were used to determine residual chlorine in sewage effluents. Both methods were used on the same samples, but each sample came from various locations with differing amounts of contact time with the effluent. Two methods were used to determine the concentration of Cl in mg/L, and the results are shown in the following table: Sample Method A Method B 0.36 1.35 0.39 2 0.84 3 1.76 2.56 3.92 3.35 4.69 4 5.35 8.33 10.70 5 6. 7.70 7 10.52 8 10.92 10.91 a. What type of t test should be used to compare the two methods and why? b. Do the two methods give different results? State and test the appropriate hypotheses. c. Does the conclusion depend on whether the 90%, 95%, or 99% confidence levels are used?

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Description: Two different analytical methods were used to determine residual chlorine in sewageeffluents. Both methods were used on the same samples, but each sample came fromvarious locations with differing amounts of contact time with the effluent. Two method

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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