Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Zinc Location concentration in concentration in bottom water Zinc surface water 1 .430 .415 .266 .238 .567 .390 4. .531 .410 .707 .605 6. .716 .609 7 .651 .632 8 .589 .523 9. .469 .411 10 .723 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a = 0.1 level of significance? Note: A normal probability plot of difference in zinc concentration between the bottom and surface of water indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume , = H1 – H2, where u is the population mean zinc concentration in the bottom of water and uz is the mean zinc %3D concentration in the surface of water. Ho:Ha Select an answer H.:Ha Select an answer b. What is the significance level? c. What is the test statistic? Round to 3 decimal places.

Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Zinc Location concentration in concentration in bottom water Zinc surface water 1 .430 .415 .266 .238 .567 .390 4. .531 .410 .707 .605 6. .716 .609 7 .651 .632 8 .589 .523 9. .469 .411 10 .723 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a = 0.1 level of significance? Note: A normal probability plot of difference in zinc concentration between the bottom and surface of water indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume , = H1 – H2, where u is the population mean zinc concentration in the bottom of water and uz is the mean zinc %3D concentration in the surface of water. Ho:Ha Select an answer H.:Ha Select an answer b. What is the significance level? c. What is the test statistic? Round to 3 decimal places.

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Description: Trace metals in drinking water affect the flavor and an unusually high concentration can pose a healthhazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of awater source.ZincLocation concentration in

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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