2011 Confidence Interval Detail
220/Tarrant
220-919/Carroll ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,014,792,506 | 0.9830 | 1,032,342,326 | 50 | 2,973 | .003422387 |
| A | 972,697,963 | 0.9728 | 999,895,110 | 51 | 2,080 | .003181837 |
| A | 1,073,630,559 | 0.9631 | 1,114,765,402 | 50 | 1,737 | .006360387 |
| A | 1,004,468,758 | 0.9849 | 1,019,868,777 | 50 | 940 | .008151512 |
| F1 | 217,688,359 | 0.8968 | 242,739,027 | 9 | 173 | .004590017 |
| F1 | 211,427,626 | 0.9209 | 229,588,040 | 8 | 50 | .023800134 |
| F1 | 209,787,950 | 0.8624 | 243,260,610 | 6 | 16 | .014393155 |
| L1 | 59,440,155 | 1.1655 | 50,999,704 | 12 | 383 | .070589074 |
| L1 | 64,816,200 | 1.0822 | 59,892,996 | 10 | 69 | .020609767 |
| L1 | 124,012,558 | 1.0039 | 123,530,788 | 7 | 17 | .001651498 |
| Random Totals: | 4,952,762,634 | 5,116,882,780 | 253 | 8,438 | ||
| Catg D1 Exception Values: | 194,264 | 111,648 | ||||
| Catg F1 Exception Values: | 175,871,393 | 199,922,000 | ||||
| Total Test Values (4): | 5,128,828,291 | 5,316,916,428 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 265,845,821 |
Confidence Interval Values (5)
| State Lower Limit: | 5,051,070,607 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 5,128,828,291 | (Within Confidence Interval) |
| State Upper Limit: | 5,582,762,249 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 5,537,609,731 | (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