2011 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 | 1,187,146,032 | 0.9980 | 1,189,525,082 | 104 | 17,469 | .032003621 |
| A | 1,271,131,956 | 1.0225 | 1,243,160,837 | 99 | 12,031 | .016915008 |
| A | 1,284,236,025 | 1.0037 | 1,279,501,868 | 102 | 8,786 | .014449785 |
| A | 1,269,835,031 | 0.9888 | 1,284,218,276 | 96 | 4,300 | .023297225 |
| B | 191,673,465 | 0.9186 | 208,658,246 | 32 | 1,623 | .016009460 |
| B | 196,676,653 | 0.9616 | 204,530,629 | 10 | 240 | .010559749 |
| B | 213,607,032 | 0.9808 | 217,788,573 | 10 | 33 | .001363368 |
| B | 215,732,647 | 1.0136 | 212,838,050 | 4 | 10 | .001402591 |
| F1 | 497,842,949 | 0.9644 | 516,220,395 | 21 | 1,764 | .051329557 |
| F1 | 519,518,000 | 1.0166 | 511,034,822 | 10 | 478 | .022540600 |
| F1 | 489,920,376 | 0.9274 | 528,272,995 | 9 | 153 | .083672253 |
| F1 | 529,747,295 | 1.0025 | 528,426,229 | 8 | 39 | .015039244 |
| L1 | 219,297,303 | 0.9942 | 220,576,648 | 10 | 1,827 | .001588909 |
| L1 | 224,449,344 | 0.9886 | 227,037,572 | 10 | 318 | .002059134 |
| L1 | 241,701,158 | 0.9568 | 252,614,087 | 10 | 99 | .005188906 |
| L1 | 238,534,661 | 0.9731 | 245,128,621 | 10 | 25 | .001233153 |
| Random Totals: | 8,791,049,927 | 8,869,532,930 | 545 | 49,195 | ||
| Catg D1 Exception Values: | 3,365,173 | 3,054,392 | ||||
| Total Test Values (4): | 8,794,415,100 | 8,872,587,322 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 443,629,366 |
Confidence Interval Values (5)
| State Lower Limit: | 8,428,957,956 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 8,794,415,100 | (Within Confidence Interval) |
| State Upper Limit: | 9,316,216,688 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 8,885,283,754 | (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