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 | 2,360,233,432 | 0.9776 | 2,414,314,067 | 41 | 24,194 | .003142486 |
| A | 2,358,893,990 | 0.9966 | 2,366,941,591 | 47 | 18,817 | .002411036 |
| A | 2,359,615,091 | 0.9888 | 2,386,342,123 | 48 | 14,802 | .001507603 |
| A | 2,359,042,770 | 0.9855 | 2,393,752,177 | 50 | 9,726 | .001527341 |
| B | 153,198,937 | 0.8760 | 174,884,631 | 12 | 949 | .065964479 |
| B | 153,127,558 | 0.8664 | 176,740,025 | 6 | 68 | .004908436 |
| B | 157,509,146 | 0.9237 | 170,519,807 | 5 | 23 | .011146296 |
| B | 148,642,795 | 0.9243 | 160,816,613 | 5 | 9 | .067740348 |
| C | 67,705,132 | 0.9903 | 68,368,305 | 7 | 1,725 | .043816138 |
| C | 67,347,667 | 1.0366 | 64,969,773 | 12 | 534 | .005154058 |
| C | 67,938,020 | 1.0085 | 67,365,414 | 7 | 136 | .003990601 |
| C | 66,918,974 | 1.0104 | 66,230,180 | 6 | 36 | .007307125 |
| F1 | 584,474,799 | 0.8662 | 674,757,330 | 8 | 1,206 | .029004733 |
| F1 | 584,580,599 | 0.9046 | 646,231,040 | 10 | 325 | .017251584 |
| F1 | 588,416,102 | 0.9329 | 630,738,667 | 7 | 124 | .008992952 |
| F1 | 577,185,742 | 1.1025 | 523,524,483 | 6 | 41 | .151280310 |
| L1 | 228,459,986 | 1.3137 | 173,905,752 | 7 | 1,438 | .077009792 |
| L1 | 227,776,731 | 1.0635 | 214,176,522 | 7 | 216 | .003508642 |
| L1 | 228,762,508 | 1.0309 | 221,905,624 | 7 | 57 | .026932580 |
| L1 | 227,140,718 | 0.9953 | 228,213,321 | 7 | 14 | .006002383 |
| Random Totals: | 13,566,970,697 | 13,824,697,445 | 305 | 74,440 | ||
| Catg D1 Exception Values: | 483,184 | 470,808 | ||||
| Total Test Values (4): | 13,567,453,881 | 13,825,168,253 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 691,258,413 |
Confidence Interval Values (5)
| State Lower Limit: | 13,133,909,840 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 13,567,453,881 | (Within Confidence Interval) |
| State Upper Limit: | 14,516,426,666 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 13,808,092,823 | (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