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Name: A study was conducted by the Department of Zoology at the University o
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Description: A study was conducted by the Department of Zoology at the University of Virginia to measure the increase of levels of a certain microorganism in the Cedar Run river. From twenty two measuring stations along the river, the average density measurements

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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A study was conducted by the Department of Zoology at the University of Virginia to measure the increase of levels of a certain microorganism in the Cedar Run river. From twenty two measuring stations along the river, the average density measurements, in organisms per square meter, from the previous year was 5715 with a standard deviation of 321. This year's average density measurement was 6095 with a standard deviation of 305. Assume that the variances are equal. With 95% confidence, test to see if the density has increased by more than 200 organisms per square meter.

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