2008 Confidence Interval Detail
091/Grayson
091-913/Pottsboro ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 94,190,703 | 0.9132 | 103,143,564 | 13 | 1,566 | .052553152 |
| A | 102,664,471 | 0.8983 | 114,287,511 | 18 | 851 | .069956885 |
| A | 113,258,320 | 0.9200 | 123,106,870 | 21 | 587 | .035600099 |
| A | 115,528,276 | 0.8903 | 129,763,311 | 7 | 311 | .089781288 |
| D3 | 68,064,381 | 1.0106 | 67,350,466 | 16 | 1,681 | .011567321 |
| F1 | 13,503,495 | 0.9306 | 14,510,525 | 6 | 116 | .009222566 |
| F1 | 10,510,783 | 0.9572 | 10,980,760 | 6 | 28 | .006869926 |
| G1 | 16,028,597 | 0.8476 | 18,910,567 | 7 | 30 | .051237999 |
| G1 | 14,948,601 | 1.0615 | 14,082,526 | 4 | 11 | .010656770 |
| G1 | 14,702,080 | 1.0594 | 13,877,742 | 3 | 5 | .026665371 |
| G1 | 15,032,460 | 1.0375 | 14,489,118 | 2 | 3 | .015460798 |
| Random Totals: | 578,432,167 | 624,502,960 | 103 | 5,189 | ||
| Catg D1 Exception Values: | 3,471,801 | 2,294,748 | ||||
| Catg F1 Exception Values: | 11,292,247 | 11,622,508 | ||||
| Total Test Values (4): | 593,196,215 | 638,420,216 |
Margin of Error
| Margin of Error Percent: | 5.6949229 |
|---|---|
| Margin of Error Value: | 36,357,539 |
Confidence Interval Values (5)
| Local Test Value: | 593,196,215 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 602,062,677 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 674,777,755 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 632,145,097 | (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