135
Table 4 - Statistical analysis the results of the comparative determination of the trace
elements by a energy dispersive X-ray fluorescence spectrometer analysis (ED-XRF) in
(%) and elemental carbon black determined by a reflectance (%) in TSP samples.
14,887 ,000 19,259 46 ,000 16,49583 ,85653 14,77172 18,21994
19,259 29,629 ,000 16,49583 ,85653 14,74564 18,24602
16,276 ,000 3,715 46 ,001 ,000875 ,000236 ,000401 ,001349
3,715 27,275 ,001 ,000875 ,000236 ,000392 ,001358
184,000 ,000 16,956 46 ,000 ,001667 ,000098 ,001469 ,001865
16,956 23,000 ,000 ,001667 ,000098 ,001463 ,001870
,479 ,492 -6,493 46 ,000 -5,344000 ,823087 -7,000788 -3,687212
-6,493 45,844 ,000 -5,344000 ,823087 -7,000940 -3,687060
184,000 ,000 16,956 46 ,000 ,001667 ,000098 ,001469 ,001865
16,956 23,000 ,000 ,001667 ,000098 ,001463 ,001870
13,627 ,001 -3,317 46 ,002 -,179125 ,053994 -,287809 -,070441
-3,317 23,014 ,003 -,179125 ,053994 -,290816 -,067434
22,709 ,000 -22,152 46 ,000 -33,566458 1,515276 -36,6166 -30,5164
-22,152 28,803 ,000 -33,566458 1,515276 -36,6665 -30,4664
,072 ,790 2,446 46 ,018 1,038750 ,424753 ,183768 1,893732
2,446 45,068 ,018 1,038750 ,424753 ,183290 1,894210
184,000 ,000 16,956 46 ,000 ,001667 ,000098 ,001469 ,001865
16,956 23,000 ,000 ,001667 ,000098 ,001463 ,001870
,002 ,963 ,399 46 ,692 ,001500 ,003763 -,006075 ,009075
,399 45,998 ,692 ,001500 ,003763 -,006075 ,009075
184,000 ,000 16,956 46 ,000 ,001667 ,000098 ,001469 ,001865
16,956 23,000 ,000 ,001667 ,000098 ,001463 ,001870
184,000 ,000 16,956 46 ,000 ,001667 ,000098 ,001469 ,001865
16,956 23,000 ,000 ,001667 ,000098 ,001463 ,001870
9,950 ,003 4,301 46 ,000 ,367625 ,085479 ,195564 ,539686
4,301 31,894 ,000 ,367625 ,085479 ,193487 ,541763
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Equal variances
assumed
Equal variances
not assumed
Reflectance
Al
Si
S
K
Ca
Fe
Cu
Zn
Sr
Zr
Ba
Pb
F Sig.
Levene's Test for
Equality of Variances
t df Sig. (2-tailed)
Mean
Difference
Std. Error
Difference
Lower Upper
95% Confidence
Interval of the
Difference
t-test for Equality of Means