Table 2. Results of a hypothesis test with a null hypothesis that the difference between the CARB-CAR and the NEE1 means is under the allowed 5% threshold.
The test is performed separately for all years between 2002 and 2014, the p-values are recorded in the last two rows.
| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CARB-CAR mean | −742.31 | −719.94 | −539.51 | −1021.69 | −2038.03 | −992.42 | −950.47 | −593.86 | −983.74 | −725.04 | −682.77 | −865.27 | −999.38 | −1432.69 |
| CARB-CAR SD | 928.79 | 585.94 | 1049.34 | 683.21 | 3433.06 | 1418.73 | 1170.20 | 644.84 | 1460.80 | 1190.51 | 1049.74 | 1541.08 | 1590.56 | 1835.66 |
| CARB-CAR (n) | 2.00 | 5.00 | 9.00 | 9.00 | 12.00 | 23.00 | 24.00 | 25.00 | 32.00 | 32.00 | 31.00 | 32.00 | 30.00 | 23.00 |
| NEE1 mean | −190.55 | −189.15 | −243.45 | −267.26 | −225.08 | −241.51 | −217.16 | −206.75 | −184.51 | −92.29 | −93.45 | −53.87 | −2.38 | −9.29 |
| NEE1 SD | 249.06 | 266.80 | 268.25 | 250.02 | 243.39 | 237.56 | 254.86 | 275.89 | 244.93 | 231.71 | 161.39 | 199.85 | 214.46 | 207.25 |
| NEE1 (n) | 40.00 | 48.00 | 45.00 | 42.00 | 44.00 | 42.00 | 41.00 | 31.00 | 24.00 | 17.00 | 12.00 | 11.00 | 8.00 | 7.00 |
| p-value | 0.01 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.02 | 0.04 | 0.05 | 0.05 | 0.03 |
| p-value in % | 0.87 | 0.05 | 6.53 | 0.00 | 0.07 | 0.13 | 0.03 | 0.36 | 0.81 | 2.37 | 3.88 | 5.48 | 5.24 | 3.25 |