There were 133 reservation
sites with sufficient measurements of vapor flow to compute T-Tests. Once again, the number showing significant
trends was more than could be explained by chance. Of the sites with significant trends, neither upward-trending nor
downward-trending sites show a clear predominance. Results for vapor flow at reservation sites are summarized in
Tables 7–8.
Table 7. Summary of T-Test
results, Vapor Flow for 133 sites on the Southern Ute Reservation.
|
Significance Level |
U
Number
of Sites with Upward Trend |
D
Number
of Sites with Downward Trend |
U+D
Number
of Sites with Any Trend |
Expected
Number of Sites with Any Trend |
Probability
of U out of U+D Sites Increasing (see
Note 1) |
Probability
of U+D Sites with Any Trend (see
Note 2) |
|||
|
99.9% |
2 |
1 |
3 |
0 |
0.875 |
3.48E-04 |
|
||
|
99.0% |
6 |
5 |
11 |
1 |
0.726 |
1.23E-07 |
|
||
|
95.0% |
10 |
21 |
31 |
7 |
0.035 |
5.62E-13 |
|
||
Table 8. Sen and Mann-Kendall
statistics, Vapor Flow for 183 sites on the Southern Ute Reservation.
|
Significance Level |
Sites
with Positive Sen estimator |
Sites
with Negative Sen
estimator |
Sites with Positive Mann-Kendall statistic
|
Sites
with Negative Mann-Kendall statistic |
|
99.0% |
15 |
0 |
22 |
0 |
|
95.0% |
23 |
1 |
33 |
1 |
Chi-square estimate of
homogeneity for the Mann-Kendall scores: less than 0.0001%