2009 Confidence Interval Detail
043/Collin
043-908/Melissa ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 79,201,753 | 0.9375 | 84,481,870 | 45 | 658 | .024982941 |
| A | 81,327,503 | 0.9883 | 82,290,300 | 28 | 431 | .013520692 |
| A | 84,538,407 | 1.0116 | 83,569,007 | 14 | 320 | .003504525 |
| A | 60,474,072 | 0.9634 | 62,771,509 | 7 | 148 | .004238198 |
| D3 | 38,903,852 | 0.9928 | 39,185,991 | 10 | 1,100 | .000450790 |
| Random Totals: | 344,445,587 | 352,298,677 | 104 | 2,657 | ||
| Catg D1 Exception Values: | 1,755,085 | 1,642,570 | ||||
| Total Test Values (4): | 346,200,672 | 353,941,247 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,697,062 |
Confidence Interval Values (5)
| State Lower Limit: | 336,244,185 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 346,200,672 | (Within Confidence Interval) |
| State Upper Limit: | 371,638,309 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 424,851,524 | (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