2009 Confidence Interval Detail
220/Tarrant
220-908/Mansfield ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,562,258,952 | 0.9804 | 1,593,491,383 | 24 | 12,513 | .003916700 |
| A | 1,518,728,463 | 0.9750 | 1,557,670,218 | 23 | 9,294 | .006646528 |
| A | 1,460,061,380 | 1.0018 | 1,457,437,992 | 26 | 7,006 | .007363772 |
| A | 1,578,032,894 | 0.9861 | 1,600,276,741 | 23 | 4,692 | .003570935 |
| F1 | 243,328,999 | 0.9390 | 259,136,314 | 8 | 430 | .008820977 |
| F1 | 259,866,497 | 0.8755 | 296,820,670 | 9 | 161 | .003431570 |
| F1 | 228,727,491 | 0.9379 | 243,871,938 | 7 | 60 | .020329495 |
| F1 | 236,238,104 | 0.9259 | 255,144,296 | 5 | 20 | .006844746 |
| L1 | 106,746,600 | 1.0936 | 97,610,278 | 7 | 597 | .018070069 |
| L1 | 103,391,996 | 1.0360 | 99,799,224 | 6 | 90 | .001131754 |
| L1 | 107,055,447 | 1.0440 | 102,543,532 | 5 | 26 | .001305917 |
| Random Totals: | 7,404,436,823 | 7,563,802,586 | 143 | 34,889 | ||
| Catg D1 Exception Values: | 862,820 | 897,145 | ||||
| Catg L1 Exception Values: | 106,950,580 | 104,989,044 | ||||
| Total Test Values (4): | 7,512,250,223 | 7,669,688,775 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 383,484,439 |
Confidence Interval Values (5)
| State Lower Limit: | 7,286,204,336 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,512,250,223 | (Within Confidence Interval) |
| State Upper Limit: | 8,053,173,214 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 8,672,577,657 | (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