2011 Confidence Interval Detail
101/Harris
101-919/Spring ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 942,715,662 | 1.0630 | 886,844,461 | 47 | 12,196 | .034635271 |
| A | 950,741,570 | 1.0155 | 936,230,005 | 45 | 9,270 | .029520205 |
| A | 918,713,958 | 1.0480 | 876,635,456 | 45 | 7,117 | .034934526 |
| A | 948,811,942 | 0.9935 | 955,019,569 | 45 | 4,717 | .025473926 |
| B | 159,886,159 | 0.9179 | 174,186,904 | 10 | 40 | .024132889 |
| B | 135,239,812 | 1.0181 | 132,835,490 | 7 | 21 | .003913083 |
| B | 178,139,427 | 1.0709 | 166,345,529 | 6 | 18 | .016714500 |
| B | 149,980,768 | 0.9147 | 163,967,167 | 5 | 9 | .030347863 |
| F1 | 382,641,887 | 0.9316 | 410,736,246 | 12 | 585 | .021097117 |
| F1 | 400,243,818 | 0.9835 | 406,958,635 | 11 | 208 | .006140385 |
| F1 | 386,303,188 | 0.9804 | 394,026,100 | 12 | 90 | .012217468 |
| F1 | 376,122,078 | 0.9245 | 406,838,375 | 8 | 33 | .008239332 |
| L1 | 115,402,564 | 0.9035 | 127,728,350 | 10 | 1,174 | .017500553 |
| L1 | 124,259,831 | 0.9401 | 132,177,248 | 10 | 182 | .007031803 |
| L1 | 135,324,603 | 0.9871 | 137,093,104 | 8 | 59 | .005422330 |
| L1 | 130,471,239 | 0.9794 | 133,215,478 | 5 | 12 | .000782722 |
| Random Totals: | 6,434,998,506 | 6,440,838,117 | 286 | 35,731 | ||
| Catg D1 Exception Values: | 11,863,371 | 11,867,970 | ||||
| Total Test Values (4): | 6,446,861,877 | 6,452,706,087 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 322,635,304 |
Confidence Interval Values (5)
| State Lower Limit: | 6,130,070,783 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,446,861,877 | (Within Confidence Interval) |
| State Upper Limit: | 6,775,341,391 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,130,865,329 | (See ISD Summary Worksheet) |
Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories