2007 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 | 1,037,684,769 | 0.9948 | 1,043,108,935 | 50 | 6,486 | .001321178 |
| A | 1,038,746,971 | 0.9975 | 1,041,350,347 | 49 | 5,087 | .001658221 |
| A | 1,036,810,901 | 0.9950 | 1,042,021,006 | 50 | 4,043 | .002261028 |
| A | 1,037,353,041 | 0.9967 | 1,040,787,640 | 50 | 2,517 | .001307240 |
| F1 | 184,352,932 | 0.9667 | 190,703,354 | 7 | 144 | .003405914 |
| F1 | 181,386,545 | 0.8192 | 221,419,122 | 5 | 54 | .031897496 |
| F1 | 190,002,672 | 0.9346 | 203,298,386 | 5 | 20 | .032220459 |
| F1 | 175,734,179 | 0.8525 | 206,139,799 | 3 | 6 | .018595202 |
| L1 | 111,996,004 | 0.9475 | 118,201,587 | 8 | 413 | .015363035 |
| L1 | 119,805,843 | 0.9699 | 123,523,913 | 9 | 28 | .002176523 |
| L1 | 111,594,971 | 0.9838 | 113,432,579 | 3 | 5 | .000921430 |
| Random Totals: | 5,225,468,828 | 5,343,986,668 | 239 | 18,803 | ||
| Catg D1 Exception Values: | 734,274 | 731,840 | ||||
| Catg L1 Exception Values: | 125,003,005 | 135,508,280 | ||||
| Total Test Values (4): | 5,351,206,107 | 5,480,226,788 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 274,011,339 |
Confidence Interval Values (5)
| State Lower Limit: | 5,206,215,449 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 5,351,206,107 | (Within Confidence Interval) |
| State Upper Limit: | 5,754,238,127 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 6,132,400,919 | (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