2007 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 | 61,645,511 | 0.9800 | 62,903,583 | 25 | 441 | .002874043 |
| A | 61,506,864 | 1.0036 | 61,286,234 | 25 | 252 | .001821982 |
| A | 61,509,865 | 0.9915 | 62,037,181 | 24 | 179 | .002432962 |
| A | 61,223,076 | 0.9816 | 62,370,697 | 11 | 121 | .003673318 |
| C | 2,849,723 | 0.9305 | 3,062,572 | 7 | 185 | .001631752 |
| C | 1,058,910 | 0.9918 | 1,067,665 | 6 | 47 | .001041877 |
| C | 1,796,868 | 0.9564 | 1,878,783 | 6 | 51 | .003540422 |
| C | 1,877,530 | 0.9794 | 1,917,021 | 6 | 26 | .001770193 |
| D3 | 37,963,084 | 0.8980 | 42,275,149 | 12 | 1,007 | .035628158 |
| L1 | 4,348,125 | 0.9968 | 4,362,084 | 7 | 42 | .003230395 |
| L1 | 5,418,448 | 0.9899 | 5,473,733 | 4 | 8 | .000201286 |
| L1 | 7,325,849 | 0.9370 | 7,818,409 | 2 | 4 | .006832967 |
| Random Totals: | 308,523,853 | 316,453,111 | 135 | 2,363 | ||
| Catg D1 Exception Values: | 1,697,236 | 1,569,845 | ||||
| Total Test Values (4): | 310,221,089 | 318,022,956 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 15,901,148 |
Confidence Interval Values (5)
| State Lower Limit: | 302,121,808 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 310,221,089 | (Within Confidence Interval) |
| State Upper Limit: | 333,924,104 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 386,539,791 | (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