2008 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 | 987,486,066 | 1.0017 | 985,810,189 | 47 | 6,651 | .003070744 |
| A | 1,133,726,630 | 0.9934 | 1,141,258,939 | 47 | 5,964 | .004147228 |
| A | 1,120,547,194 | 0.9904 | 1,131,408,718 | 48 | 4,532 | .002478102 |
| A | 1,265,896,522 | 0.9953 | 1,271,874,331 | 50 | 3,073 | .002420512 |
| D3 | 204,508,998 | 1.1387 | 179,598,663 | 7 | 418 | .101734468 |
| F1 | 198,426,950 | 0.9542 | 207,951,111 | 7 | 163 | .034944135 |
| F1 | 172,387,791 | 0.9882 | 174,446,257 | 6 | 51 | .004693715 |
| F1 | 194,406,696 | 0.8838 | 219,966,843 | 5 | 23 | .026171025 |
| F1 | 256,206,602 | 0.9127 | 280,712,832 | 4 | 10 | .017374924 |
| L1 | 123,565,451 | 1.0219 | 120,917,361 | 8 | 415 | .004277156 |
| L1 | 134,503,350 | 0.9925 | 135,519,748 | 6 | 37 | .004603232 |
| L1 | 126,663,057 | 1.0060 | 125,907,611 | 4 | 6 | .000022690 |
| Random Totals: | 5,918,325,307 | 5,975,372,603 | 239 | 21,343 | ||
| Catg D1 Exception Values: | 635,883 | 701,417 | ||||
| Total Test Values (4): | 5,918,961,190 | 5,976,074,020 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 298,803,701 |
Confidence Interval Values (5)
| State Lower Limit: | 5,677,270,319 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 5,918,961,190 | (Within Confidence Interval) |
| State Upper Limit: | 6,274,877,721 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 6,758,496,000 | (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