The homogeneity of the chloride level in a water sample from a lake was tested byanalyzing portions drawn from the top and from near the bottom of the lake, with thefollowing results in ppm Cl:ТоpBottom26.3026.2226.4326.3226.2826.2026.1926.1126.4926.42a. Apply the t test at the 95% confidence level to determine if the chloride levelfrom the top of the lake is different from that at the bottom.b. Now use the paired t test and determine whether there is a significantdifference between the top and bottom values at the 95% confidence level.c. Why is a different conclusion drawn from using the paired t test than from justpooling the data and using the normal t test for differences in means?

Answered: The homogeneity of the chloride level…

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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The homogeneity of the chloride level in a water sample from a lake was tested by analyzing portions drawn from the top and from near the bottom of the lake, with the following results in ppm Cl: Тop Bottom 26.30 26.22 26.43 26.32 26.28 26.20