Sediment Measurement

Range of Error

1st Quartile

Median

3rd Quartile

*Nonparametric Test Results

Z-Statistic

P-Value

Total Phosphorus

Distance Squared Inverse

Data Stratified

0.0023 to 8.7386

0.0790

0.2029

0.8292

−6.5880

0.0000

Data Unstratified

0.0038 to 12.9962

0.2373

0.3931

2.3442

Nearest Neighbor

Data Stratified

0.0092 to 9.8865

0.0672

0.2120

.6306

−3.422

0.001

Data Unstratified

0.106 to 12.9772

0.1066

0.4088

1.022

Sodium Hydroxide Extractable Phosphorus (PO4NaOH)

Distance Squared Inverse

Data Stratified

0.0060 to 6.4191

0.1883

0.3672

0.7372

−5.3760

0.0000

Data Unstratified

0.0044 to 13.5622

0.2476

0.4776

1.8541

Nearest Neighbor

Data Stratified

0.0079 to 12.7063

0.1542

0.3415

0.6725

−2.3690

0.0180

Data Unstratified

0.0098 to 12.6573

0.2101

0.3942

0.8003

Biogenic Silica

Distance Squared Inverse

Data Stratified

0.0034 to 18.1374

0.2300

0.5659

1.4070

−5.1120

0.0000

Data Unstratified

0.0261 to 69.7855

0.3300

0.5847

5.8375

Nearest Neighbor

Data Stratified

0.0121 to 48.6795

0.2014

0.4452

0.9667

−1.6970

0.0900

Data Unstratified

0.0108 to 56.1855

0.2179

0.5231

1.6759

Organic Nitrogen

Distance Squared Inverse

Data Stratified

0.0011 to 21.7567

0.1234

0.3709

1.1903

−6.1200

0.0000

Data Unstratified

0.0027 to 37.1523

0.2484

0.4394

3.9072

Nearest Neighbor

Data Stratified

0.0021 to 29.1750

0.1351

0.3573

0.9413

−3.0130

0.0030

Data Unstratified

0.0131 to 38.8221

0.1951

0.4412

1.6553

Organic Carbon

Distance Squared Inverse

Data Stratified

0.0010 to 20.4607

0.0951

0.3912

1.5491

−6.4270

0.0000

Data Unstratified

0.0218 to 54.3997

0.2750

0.5385

5.2850

Nearest Neighbor

Data Stratified

0.0012 to 34.0017

0.1062

0.3882

0.8872

−3.8070

0.0000

Data Unstratified

0.0012 to 33.4750

0.2312

0.4874

1.9163