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Lubbock County
2019 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 | 644,071,395 | 0.9638 | 668,262,497 | 68 | 3769 | 0.008660855 |
| A | 647,871,509 | 0.9646 | 671,647,843 | 80 | 2542 | 0.005745283 |
| A | 695,643,701 | 0.9769 | 712,093,050 | 82 | 1834 | 0.023338044 |
| A | 665,061,915 | 0.9767 | 680,927,526 | 70 | 980 | 0.025892310 |
| F1 | 107,325,691 | 0.9559 | 112,277,112 | 12 | 264 | 0.025960434 |
| F1 | 114,186,183 | 0.9484 | 120,398,759 | 11 | 104 | 0.014964461 |
| F1 | 118,727,702 | 1.0492 | 113,160,219 | 9 | 49 | 0.007562759 |
| F1 | 93,235,010 | 0.9901 | 94,167,266 | 5 | 11 | 0.005767136 |
| Random Totals: | 3,086,123,106 | 3,172,934,272 | 337 | 9,553 | ||
| CATG D1 EXCEPTION VALUES: | 14,284,794 | 11,497,123 | ||||
| Total Test Values(1) | 3,100,407,900 | 3,184,431,395 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 159,221,570 |
Confidence Interval Values(5)
| Local Test Value: | 3,100,407,900 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 3,025,209,825 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 3,343,652,965 | (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