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Lubbock County
2021 Confidence Interval Detail
Lubbock County
152-906/Lubbock-Cooper ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 753,790,321 | 0.9812 | 768,233,103 | 74 | 4,154 | 0.010591240 |
| A | 807,861,756 | 0.9781 | 825,950,062 | 75 | 3,021 | 0.004369249 |
| A | 846,083,463 | 1.0065 | 840,619,437 | 74 | 2,133 | 0.006000197 |
| A | 888,580,632 | 0.9851 | 902,020,741 | 75 | 1,263 | 0.009701661 |
| F1 | 123,853,678 | 0.9220 | 134,331,538 | 10 | 268 | 0.059559868 |
| F1 | 123,330,123 | 0.9890 | 124,701,843 | 10 | 110 | 0.001687134 |
| F1 | 130,706,743 | 1.0145 | 128,838,584 | 9 | 59 | 0.013217303 |
| F1 | 163,865,434 | 1.0950 | 149,648,798 | 7 | 24 | 0.029288206 |
| Random Totals: | 3,838,072,150 | 3,874,344,106 | 334 | 11,032 | ||
| CATG D1 EXCEPTION VALUES: | 12,444,556 | 13,182,432 | ||||
| Total Test Values | 3,850,516,706 | 3,887,526,538 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 194,376,327 |
Confidence Interval Values(5)
| Local Test Value: | 3,850,516,706 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 3,693,150,211 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 4,081,902,865 | (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