2006 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 | 2,290,390,018 | 1.0058 | 2,277,182,360 | 45 | 23,826 | .007779646 |
| A | 2,289,945,700 | 1.0089 | 2,269,744,970 | 47 | 18,583 | .002931399 |
| A | 2,289,822,570 | 1.0216 | 2,241,408,154 | 48 | 14,654 | .002988147 |
| A | 2,289,772,311 | 1.0016 | 2,286,114,528 | 49 | 9,784 | .002510050 |
| B | 140,018,706 | 1.0003 | 139,976,713 | 19 | 937 | .001830758 |
| B | 140,716,278 | 1.0491 | 134,130,472 | 6 | 66 | .002569702 |
| B | 141,122,851 | 0.9201 | 153,377,732 | 8 | 22 | .018383466 |
| B | 136,764,278 | 0.9883 | 138,383,363 | 6 | 9 | .052890948 |
| F1 | 479,010,394 | 1.0381 | 461,429,914 | 12 | 1,189 | .002283609 |
| F1 | 481,284,455 | 0.8614 | 558,723,537 | 8 | 340 | .050601575 |
| F1 | 481,478,508 | 0.8733 | 551,332,312 | 7 | 127 | .046456621 |
| F1 | 474,022,401 | 0.9834 | 482,023,999 | 6 | 44 | .003250431 |
| L1 | 221,937,647 | 1.0806 | 205,383,719 | 7 | 1,374 | .001100444 |
| L1 | 222,860,775 | 1.0068 | 221,355,557 | 7 | 197 | .000097026 |
| L1 | 226,941,417 | 1.0492 | 216,299,482 | 7 | 50 | .006245011 |
| L1 | 214,912,292 | 1.0629 | 202,194,272 | 6 | 10 | .006655509 |
| Random Totals: | 12,521,000,601 | 12,539,061,084 | 288 | 71,212 | ||
| Catg D1 Exception Values: | 550,340 | 552,539 | ||||
| Total Test Values (4): | 12,521,550,941 | 12,539,613,623 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 626,980,681 |
Confidence Interval Values (5)
| State Lower Limit: | 11,912,632,942 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 12,521,550,941 | (Within Confidence Interval) |
| State Upper Limit: | 13,166,594,304 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 12,906,875,408 | (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