Toblem 3. Two water treatment reservoirs were examined to determine if there was a difference in productivity. Differences in productivity are measured by the presence of four types of micro-organisms. After four samples were taken at each
Toblem 3. Two water treatment reservoirs were examined to determine if there was a difference in productivity. Differences in productivity are measured by the presence of four types of micro-organisms. After four samples were taken at each
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
S3

Transcribed Image Text:Foblem 3. Two water treatment reservoirs were examined to determine if
there was a difference in productivity. Differences in productivity are measured by
the presence of four types of micro-organisms. After four samples were taken at each
1
IE 424 Process Quality Engineering
2022 Spring
reservoir, the following sample statistics were calculated. Assume data are normally
distributed.
Reservoir #1
Reservoir #2
Mean
Std Dev
Mean
Std Dev
Copepoda
Daphnia
|Mayfly
75.00
50.00
675.0
394.75
13.75
9.46
12.5
5.77
35.0
19.15
Volvox
17.5
9.52
a. Are there any differences in the Copepoda and Daphnia population at the 2
reservoirs at a significance level of a = 0.05?
b. Are there significant differences in Daphnia and Volvox at reservoir#2 at a
significance level of a = 0.05?
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