Projects

CSEMP assessment of CB118 in biota at Grimsby Roads (Lower Humber)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean166.7769.77-30.3860.77
linear264.9671.36-28.4856.963.807 10.0511
smooth (df = 2)363.5676.06-26.7853.563.406 10.0650

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200220120.93100.1857-0.7452 0.3356-2.2210.0618
last 20 years200220120.93100.1857-0.7452 0.3356-2.2210.0618

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC1.2040.100-2.4883 0.2232-11.1471.0000
EAC1.2043.250 0.9929 0.2232 4.4480.0015

 


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for in biota
  • Accessment criteria for in biota