2009 Confidence Interval Detail
043/Collin
043-902/Anna ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 120,386,275 | 0.9740 | 123,599,872 | 37 | 1,202 | .007471276 |
| A | 84,425,449 | 0.9982 | 84,577,689 | 21 | 679 | .003102361 |
| A | 81,654,825 | 1.0128 | 80,622,852 | 20 | 557 | .007821641 |
| A | 73,722,177 | 1.0168 | 72,504,108 | 14 | 364 | .010244445 |
| D3 | 81,347,264 | 0.9425 | 86,310,094 | 20 | 1,811 | .013555866 |
| F1 | 8,386,531 | 0.8958 | 9,362,057 | 6 | 28 | .097018329 |
| F1 | 5,781,487 | 1.0042 | 5,757,306 | 3 | 4 | .002991202 |
| F1 | 10,889,968 | 0.9982 | 10,909,605 | 2 | 5 | .000587563 |
| Random Totals: | 466,593,976 | 473,643,583 | 123 | 4,650 | ||
| Catg D1 Exception Values: | 4,045,907 | 3,823,146 | ||||
| Catg F1 Exception Values: | 11,768,890 | 12,150,890 | ||||
| Total Test Values (4): | 482,408,773 | 489,617,619 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 24,480,881 |
Confidence Interval Values (5)
| State Lower Limit: | 465,136,738 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 482,408,773 | (Within Confidence Interval) |
| State Upper Limit: | 514,098,500 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 517,384,319 | (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