2010 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 | 297,618,856 | 0.9838 | 302,519,675 | 25 | 1,721 | .001775067 |
| A | 318,200,552 | 0.9889 | 321,772,224 | 25 | 1,099 | .005225948 |
| A | 286,323,885 | 1.0082 | 283,995,125 | 24 | 670 | .003649804 |
| A | 251,837,998 | 1.0108 | 249,147,208 | 24 | 362 | .005012685 |
| D3 | 109,233,461 | 0.9799 | 111,474,090 | 17 | 917 | .001204673 |
| F1 | 27,449,257 | 1.0904 | 25,173,567 | 10 | 105 | .035836449 |
| F1 | 24,629,817 | 0.9905 | 24,866,044 | 6 | 16 | .001453485 |
| F1 | 14,619,474 | 0.9732 | 15,022,065 | 4 | 5 | .002590148 |
| Random Totals: | 1,329,913,300 | 1,333,969,998 | 135 | 4,895 | ||
| Catg J Exception Values: | 23,705,934 | 25,885,007 | ||||
| Catg D1 Exception Values: | 3,071,207 | 3,169,316 | ||||
| Catg F1 Exception Values: | 18,198,650 | 18,518,453 | ||||
| Total Test Values (4): | 1,374,889,091 | 1,381,542,774 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 69,077,139 |
Confidence Interval Values (5)
| State Lower Limit: | 1,312,465,635 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,374,889,091 | (Within Confidence Interval) |
| State Upper Limit: | 1,450,619,913 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,709,834,491 | (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