Statistical Analysis for Mid-Ebb Tide

Station MW1
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = 0.005)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	8.613	6.825	10.725
Quarterly mean	35	0	7.250	5.563	8.750
n(small)= 16	n(big)= 35
Results:
T = 513.000
(P = 0.050)
Conclusion:
There is not a statistically significant difference between the groups.

Station MW2
t-test
Normality Test	Passed	(P = 0.093)
Equal Variance Test	Passed	(P = 0.896)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	7.861	2.265	0.566
Quarterly mean	35	0	7.057	2.237	0.378
Difference	0.804
Results:
t = 1.186 with 49 degrees of freedom. (P = 0.241)
Conclusion:
There is not a statistically significant difference between the groups.

Station MW3
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	8.125	6.936	9.640
Quarterly mean	35	0	7.500	5.872	9.000
n(small)= 16	n(big)= 35
Results:
T = 449.000
(P = 0.509)
Conclusion:
There is not a statistically significant difference between the groups.

Station MW4
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.302)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	8.085	2.07	0.517
Quarterly mean	35	0	7.724	2.692	0.455
Difference	0.361
Results:
t = 0.475 with 49 degrees of freedom. (P = 0.637)
Conclusion:
There is not a statistically significant difference between the groups.

Station MW5
t-test
Normality Test	Passed	(P = 0.057)
Equal Variance Test	Passed	(P = 0.281)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	10.075	3.195	0.799
Quarterly mean	35	0	7.752	2.487	0.42
Difference	2.323
Results:
t = 2.827 with 49 degrees of freedom. (P = 0.007)
Conclusion:
There is a statistically significant difference between the groups.

Station MW6
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.096)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	10.469	3.53	0.882
Quarterly mean	35	0	7.786	2.468	0.417
Difference	2.683
Results:
t = 3.136 with 49 degrees of freedom. (P = 0.003)
Conclusion:
There is a statistically significant difference between the groups.

Station MC1
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = 0.006)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	9.321	7.261	12.773
Quarterly mean	35	0	7.500	5.373	8.585
n(small)= 16	n(big)= 35
Results:
T = 536.000
(P = 0.015)
Conclusion:
There is a statistically significant difference between the groups.

Station MC2
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.137)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	9.371	3.494	0.873
Quarterly mean	35	0	7.457	2.318	0.392
Difference	1.914
Results:
t = 2.321 with 49 degrees of freedom. (P = 0.024)
Conclusion:
There is a statistically significant difference between the groups.

Station MR5
t-test
Normality Test	Passed	(P = 0.022)
Equal Variance Test	Passed	(P = 0.400)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	9.952	3.419	0.855
Quarterly mean	35	0	7.648	2.725	0.461
Difference	2.305
Results:
t = 2.584 with 49 degrees of freedom. (P = 0.013)
Conclusion:
There is a statistically significant difference between the groups.

Station MR6
t-test
Normality Test	Passed	(P = 0.037)
Equal Variance Test	Passed	(P = 0.600)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	9.439	3.077	0.769
Quarterly mean	35	0	7.734	2.699	0.456
Difference	1.705
Results:
t = 2.003 with 49 degrees of freedom. (P = 0.051)
Conclusion:
There is not a statistically significant difference between the groups.

Station WFCZF1
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.185)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	9.588	3.888	0.972
Quarterly mean	35	0	7.533	2.268	0.383
Difference	2.055
Results:
t = 2.379 with 49 degrees of freedom. (P = 0.021)
Conclusion:
There is a statistically significant difference between the groups.

Statistical Analysis for Mid-Flood Tide

Station MW1
Mann-Whitney Rank Sum Test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Failed	(P = 0.003)
Group Name	N	Missing	Median	25%	75%
130% Baseline mean	16	0	11.486	9.425	16.361
Quarterly mean	37	0	7.000	5.688	8.563
n(small)= 16	n(big)= 37
Results:
T = 646.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MW2
t-test
Normality Test	Passed	(P = 0.085)
Equal Variance Test	Passed	(P = 0.078)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	11.321	3.885	0.971
Quarterly mean	37	0	7.541	3.026	0.497
Difference	3.78
Results:
t = 3.826 with 51 degrees of freedom. (P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MW3
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	13.546	9.965	15.165
Quarterly mean	37	0	7.330	5.500	8.873
n(small)= 16	n(big)= 37
Results:
T = 641.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MW4
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	12.890	9.861	15.386
Quarterly mean	37	0	7.170	5.875	8.830
n(small)= 16	n(big)= 37
Results:
T = 629.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MW5
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	13.000	9.913	15.600
Quarterly mean	37	0	7.170	5.500	8.830
n(small)= 16	n(big)= 37
Results:
T = 662.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MW6
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.173)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	10.522	2.919	0.73
Quarterly mean	37	0	7.379	2.007	0.33
Difference	3.143
Results:
t = 4.541 with 51 degrees of freedom. (P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MC1
t-test
Normality Test	Passed	(P > 0.200)
Equal Variance Test	Passed	(P = 0.237)
Group Name	N	Missing	Mean	Std Dev	SEM
130% Baseline mean	16	0	9.574	2.993	0.748
Quarterly mean	37	0	7.523	2.278	0.374
Difference	2.051
Results:
t = 2.731 with 51 degrees of freedom. (P = 0.009)
Conclusion:
There is a statistically significant difference between the groups.

Station MC2
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	9.861	8.665	10.511
Quarterly mean	37	0	7.330	5.670	8.082
n(small)= 16	n(big)= 37
Results:
T = 597.000
(P = 0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MR5
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	13.975	11.375	16.250
Quarterly mean	37	0	7.170	5.670	8.210
n(small)= 16	n(big)= 37
Results:
T = 665.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station MR6
Mann-Whitney Rank Sum Test
Normality Test	Failed	(P = 0.005)
Group Name	N	Missing	Median	0.250	0.750
130% Baseline mean	16	0	13.104	10.725	16.900
Quarterly mean	37	0	7.330	6.170	8.915
n(small)= 16	n(big)= 37
Results:
T = 675.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.

Station WFCZF1
Mann-Whitney Rank Sum Test
Normality Test	Passed	(P = 0.180)
Equal Variance Test	Failed	(P = <0.001)
Group Name	N	Missing	Median	25%	75%
130% Baseline mean	16	0	14.736	10.511	17.875
Quarterly mean	37	0	7.170	5.29	8.625
n(small)= 16	n(big)= 37
Results:
T = 683.000
(P = <0.001)
Conclusion:
There is a statistically significant difference between the groups.