2009 Confidence Interval Detail
043/Collin
043-912/Prosper ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 254,783,296 | 1.0029 | 254,046,561 | 49 | 1,459 | .003883883 |
| A | 289,084,306 | 0.9771 | 295,859,488 | 48 | 1,003 | .013318571 |
| A | 280,155,599 | 0.9874 | 283,730,605 | 48 | 645 | .002392115 |
| A | 251,881,513 | 0.9984 | 252,285,169 | 24 | 339 | .001637787 |
| D3 | 115,464,531 | 0.9836 | 117,389,722 | 10 | 917 | .003021956 |
| F1 | 18,104,197 | 0.9556 | 18,945,371 | 7 | 101 | .001964612 |
| F1 | 18,777,193 | 0.8724 | 21,523,605 | 6 | 17 | .020017091 |
| F1 | 20,798,940 | 0.9498 | 21,898,231 | 6 | 10 | .009312464 |
| Random Totals: | 1,249,049,575 | 1,265,678,752 | 198 | 4,491 | ||
| Catg D1 Exception Values: | 3,124,128 | 3,088,866 | ||||
| Catg F1 Exception Values: | 38,739,810 | 43,488,129 | ||||
| Total Test Values (4): | 1,290,913,513 | 1,312,255,747 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 65,612,787 |
Confidence Interval Values (5)
| State Lower Limit: | 1,246,642,960 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,290,913,513 | (Within Confidence Interval) |
| State Upper Limit: | 1,377,868,534 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,646,196,731 | (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