2007 Confidence Interval Detail
152/Lubbock
152-901/Lubbock ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,149,476,980 | 0.9222 | 1,246,450,857 | 75 | 17,891 | .048089677 |
| A | 1,149,237,058 | 0.9754 | 1,178,221,302 | 75 | 11,600 | .009774313 |
| A | 1,149,383,007 | 0.9887 | 1,162,519,477 | 75 | 8,150 | .013250815 |
| A | 1,149,166,221 | 0.9375 | 1,225,777,302 | 74 | 4,096 | .025856700 |
| B | 178,762,264 | 0.9094 | 196,571,656 | 80 | 1,494 | .067057927 |
| B | 180,984,172 | 1.1052 | 163,756,942 | 7 | 366 | .073336812 |
| B | 178,982,205 | 0.9733 | 183,892,125 | 6 | 37 | .006962502 |
| B | 175,463,242 | 0.9606 | 182,660,048 | 4 | 7 | .004337128 |
| F1 | 418,170,911 | 0.9317 | 448,825,707 | 32 | 1,649 | .038627010 |
| F1 | 418,573,511 | 1.0341 | 404,770,826 | 7 | 449 | .017091451 |
| F1 | 418,128,418 | 1.0017 | 417,418,806 | 7 | 151 | .007553060 |
| F1 | 415,687,712 | 0.9449 | 439,927,730 | 6 | 34 | .006217191 |
| L1 | 216,806,189 | 1.0600 | 204,534,141 | 7 | 2,303 | .005387545 |
| L1 | 216,754,836 | 0.9915 | 218,613,047 | 7 | 366 | .000466781 |
| L1 | 216,945,402 | 0.9902 | 219,092,509 | 7 | 118 | .001515819 |
| L1 | 216,491,419 | 0.9938 | 217,842,040 | 6 | 30 | .000701044 |
| Random Totals: | 7,849,013,547 | 8,110,874,515 | 475 | 48,741 | ||
| Catg D1 Exception Values: | 3,436,986 | 2,306,859 | ||||
| Total Test Values (4): | 7,852,450,533 | 8,113,181,374 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 405,659,069 |
Confidence Interval Values (5)
| State Lower Limit: | 7,707,522,305 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,852,450,533 | (Within Confidence Interval) |
| State Upper Limit: | 8,518,840,443 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,953,239,386 | (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