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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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S3
![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?](https://content.bartleby.com/qna-images/question/a585487d-7f9a-4328-bb04-7fb1a0fe7f30/a05757ba-bbac-433f-a5d6-8335e250f120/wszlzdo_thumbnail.jpeg)
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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