2008 Confidence Interval Detail
043/Collin
043-902/Anna ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 84,332,777 | 0.9700 | 86,941,007 | 24 | 883 | .008820471 |
| A | 88,601,599 | 0.9889 | 89,596,116 | 24 | 715 | .007042352 |
| A | 104,433,372 | 0.9928 | 105,190,745 | 21 | 711 | .003197456 |
| A | 84,466,339 | 1.0177 | 82,997,287 | 25 | 425 | .005758998 |
| D3 | 86,255,739 | 1.0250 | 84,151,940 | 25 | 1,807 | .071854914 |
| Random Totals: | 448,089,826 | 448,877,095 | 119 | 4,541 | ||
| Catg D1 Exception Values: | 3,743,513 | 3,732,523 | ||||
| Total Test Values (4): | 451,833,339 | 452,609,618 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 22,630,481 |
Confidence Interval Values (5)
| State Lower Limit: | 429,979,137 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 451,833,339 | (Within Confidence Interval) |
| State Upper Limit: | 475,240,099 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 521,658,437 | (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