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Collin County
2020 Confidence Interval Detail
Collin County
043-918/Community ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 220,882,626 | 0.9598 | 230,134,013 | 71 | 1,278 | 0.003449585 |
| A | 207,414,172 | 0.9806 | 211,517,614 | 63 | 874 | 0.001497239 |
| A | 202,663,503 | 1.0015 | 202,359,963 | 44 | 710 | 0.004746303 |
| A | 263,310,334 | 0.9894 | 266,131,326 | 34 | 699 | 0.002406522 |
| E | 235,959,482 | 0.9895 | 238,463,347 | 23 | 1,194 | 0.021627129 |
| Random Totals: | 1,130,230,117 | 1,148,606,263 | 235 | 4,755 | ||
| CATG D1 EXCEPTION VALUES: | 3,570,428 | 2,743,561 | ||||
| Total Test Values | 1,133,800,545 | 1,151,349,824 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 57,567,491 |
Confidence Interval Values(5)
| Local Test Value: | 1,133,800,545 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 1,093,782,333 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,208,917,315 | (State Test Value plus Margin of Error Percent) |
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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values