Answered: 1) In addition to NOAA-GLERL, several…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1) In addition to NOAA-GLERL, several other institutions also have routine monitoring programs on Lake Erie. Data file LakeErie2.csv contains TP and chla concentration data collected by NOAA-GLERL, Ohio Department of Natural Resources (ODNR), and The University of Toledo (Toledo).

a) Compare the distribution of the TP concentration data from NOAA to the same from ODNR: • Are the two distributions different? • If so, is the difference between the two TP concentration distributions more likely to be additive or multiplicative? • Are the variances of the two distributions the same?

b)Describe the difference in the two distributions in non-technical terms.

c)Repeat the previous comparison to compare TP distributions from Toledo and NOAA, and ODNR and Toledo, and summarize the results.

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