2007 Confidence Interval Detail
057/Dallas
057-909/Garland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,359,858,295 | 0.9776 | 2,413,930,334 | 41 | 24,194 | .003142486 |
| A | 2,358,519,067 | 0.9966 | 2,366,565,389 | 47 | 18,817 | .002411036 |
| A | 2,359,240,053 | 0.9888 | 2,385,962,837 | 48 | 14,802 | .001507603 |
| A | 2,358,667,823 | 0.9855 | 2,393,371,713 | 50 | 9,726 | .001527341 |
| B | 151,826,304 | 0.8760 | 173,317,699 | 12 | 949 | .065964479 |
| B | 151,755,565 | 0.8664 | 175,156,469 | 6 | 68 | .004908436 |
| B | 156,097,895 | 0.9237 | 168,991,983 | 5 | 23 | .011146296 |
| B | 147,310,984 | 0.9243 | 159,375,726 | 5 | 9 | .067740348 |
| C | 66,235,716 | 0.9903 | 66,884,496 | 7 | 1,725 | .043816138 |
| C | 65,886,010 | 1.0366 | 63,559,724 | 12 | 534 | .005154058 |
| C | 66,463,550 | 1.0085 | 65,903,371 | 7 | 136 | .003990601 |
| C | 65,466,621 | 1.0104 | 64,792,776 | 6 | 36 | .007307125 |
| F1 | 573,727,043 | 0.8662 | 662,349,392 | 8 | 1,206 | .029004733 |
| F1 | 573,830,898 | 0.9046 | 634,347,665 | 10 | 325 | .017251584 |
| F1 | 577,595,871 | 0.9329 | 619,140,177 | 7 | 124 | .008992952 |
| F1 | 566,572,022 | 1.1025 | 513,897,526 | 6 | 41 | .151280310 |
| L1 | 229,699,059 | 1.3137 | 174,848,945 | 7 | 1,438 | .077009792 |
| L1 | 229,012,097 | 1.0635 | 215,338,126 | 7 | 216 | .003508642 |
| L1 | 230,003,221 | 1.0309 | 223,109,148 | 7 | 57 | .026932580 |
| L1 | 228,372,635 | 0.9953 | 229,451,055 | 7 | 14 | .006002383 |
| Random Totals: | 13,516,140,729 | 13,770,294,551 | 305 | 74,440 | ||
| Catg D1 Exception Values: | 483,184 | 469,949 | ||||
| Total Test Values (4): | 13,516,623,913 | 13,770,764,500 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 688,538,225 |
Confidence Interval Values (5)
| State Lower Limit: | 13,082,226,275 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 13,516,623,913 | (Within Confidence Interval) |
| State Upper Limit: | 14,459,302,725 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 13,645,081,708 | (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