2009 Confidence Interval Detail
043/Collin
043-901/Allen ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,215,340,007 | 0.9818 | 1,237,869,227 | 49 | 8,084 | .003481934 |
| A | 1,044,746,380 | 0.9895 | 1,055,832,623 | 48 | 5,368 | .002447813 |
| A | 1,160,829,290 | 1.0013 | 1,159,322,171 | 49 | 4,471 | .002050354 |
| A | 1,250,845,820 | 1.0031 | 1,246,980,181 | 46 | 2,903 | .001339690 |
| F1 | 235,571,490 | 0.9189 | 256,362,488 | 9 | 181 | .036386523 |
| F1 | 224,941,658 | 0.9135 | 246,241,552 | 7 | 61 | .010547002 |
| F1 | 222,365,429 | 0.8162 | 272,439,879 | 5 | 22 | .082864278 |
| F1 | 331,959,846 | 0.9167 | 362,124,846 | 4 | 8 | .002286986 |
| L1 | 116,993,678 | 0.9428 | 124,091,725 | 8 | 515 | .009047254 |
| L1 | 98,579,714 | 0.9620 | 102,473,715 | 6 | 56 | .006980727 |
| L1 | 124,865,786 | 0.9427 | 132,455,485 | 4 | 12 | .024953153 |
| L1 | 103,359,486 | 0.9515 | 108,627,941 | 3 | 4 | .009135052 |
| Random Totals: | 6,130,398,584 | 6,304,821,833 | 238 | 21,685 | ||
| Catg D1 Exception Values: | 689,229 | 716,003 | ||||
| Total Test Values (4): | 6,131,087,813 | 6,305,537,836 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 315,276,892 |
Confidence Interval Values (5)
| State Lower Limit: | 5,990,260,944 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,131,087,813 | (Within Confidence Interval) |
| State Upper Limit: | 6,620,814,728 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,132,837,054 | (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