Appendix F:
Statistical Analysis of the Trend of Suspended Solids in the Quarter
Station
Mid-Ebb FM1
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P=<0.001) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
7.335 |
5.835 |
8.335 |
|
Quarterly
mean |
31 |
0 |
5.330 |
4.000 |
6.957 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 334.500
P = 0.058
Conclusion:
There is not a statistically significant difference
between the groups
Station
Mid-Ebb FM2
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P=0.005) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
7.665 |
5.830 |
8.330 |
|
Quarterly
mean |
31 |
0 |
5.170 |
4.042 |
7.332 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 334.000
P = 0.031
Conclusion:
There is a statistically significant difference
between the groups
Station
Mid-Ebb FC1
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P=0.002) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
7.670 |
6.500 |
8.500 |
|
Quarterly
mean |
31 |
0 |
6.000 |
4.542 |
7.458 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 348.500
P = 0.023
Conclusion:
There is a statistically significant difference
between the groups
.
Station
Mid-Ebb FC2
t-test
|
Normality Test |
Passed |
(P = 0.032) |
|
|
|
|
Equal Variance Test |
Passed |
(P = 0.423) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
6.695 |
1.956 |
0.565 |
|
Quarterly
mean |
31 |
0 |
6.226 |
2.884 |
0.518 |
|
Difference |
0.469 |
|
|||
Results:
t = -0.518
41 degrees of freedom.
(P = 0.608)
Conclusion:
There is a statistically significant difference
between the groups.
Station
Mid-Flood FM1
Mann-Whitney Rank
Sum Test
|
Normality Test |
Failed |
(P=0.006) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
5.500 |
4.835 |
7.000 |
|
Quarterly
mean |
31 |
0 |
5.500 |
4.042 |
6.747 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 287.000
P = 0.542
Conclusion:
There is not a statistically significant difference
between the groups.
Station
Mid-Flood FM2
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P<
0.001) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
5.835 |
5.330 |
6.830 |
|
Quarterly
mean |
31 |
0 |
5.830 |
4.830 |
6.670 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 272.500
P = 0.829
Conclusion:
There is not a statistically significant difference
between the groups
Station
Mid-Flood FC1
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P <
0.001) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
6.165 |
5.835 |
7.000 |
|
Quarterly
mean |
31 |
0 |
5.170 |
4.042 |
7.128 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 325.000
P = 0.101
Conclusion:
There is not a statistically significant difference
between the groups.
Station
Mid-Flood FC2
Mann-Whitney
Rank Sum Test
|
Normality Test |
Failed |
(P = 0.001) |
|
|
|
|
Group Name |
N |
Missing |
Median |
25% |
75% |
|
Baseline
mean |
12 |
0 |
5.670 |
5.165 |
7.500 |
|
Quarterly
mean |
31 |
0 |
5.500 |
4.330 |
7.290 |
|
n
(small) = 12 |
n (big)
= 31 |
|
|||
Results:
T = 287.000
P = 0.542
Conclusion:
There is not a statistically significant difference
between the groups.