2007 Confidence Interval Detail
140/Lamb
140-904/Littlefield ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 20,473,119 | 1.1157 | 18,350,022 | 8 | 1,037 | .128055912 |
| A | 20,440,597 | 0.9424 | 21,689,937 | 10 | 441 | .050316577 |
| A | 20,438,351 | 0.8785 | 23,265,055 | 9 | 258 | .011391714 |
| A | 20,419,084 | 0.8552 | 23,876,384 | 10 | 160 | .014450307 |
| D3 | 9,027,290 | 0.9940 | 9,081,781 | 17 | 1,535 | .029025121 |
| F1 | 4,468,692 | 0.8710 | 5,130,530 | 10 | 169 | .162410455 |
| F1 | 4,468,273 | 0.9599 | 4,654,936 | 8 | 37 | .039061885 |
| F1 | 4,658,077 | 0.9563 | 4,870,937 | 4 | 12 | .002737414 |
| F1 | 3,973,735 | 0.9477 | 4,193,030 | 3 | 4 | .000491359 |
| G1 | 6,238,200 | 1.0993 | 5,674,702 | 5 | 13 | .015049733 |
| L1 | 4,438,013 | 0.9495 | 4,674,053 | 7 | 93 | .045284042 |
| L1 | 4,370,655 | 0.9918 | 4,406,791 | 7 | 23 | .004745531 |
| L1 | 4,827,055 | 1.0360 | 4,659,319 | 3 | 8 | .000585306 |
| Random Totals: | 128,241,141 | 134,527,477 | 101 | 3,790 | ||
| Catg J Exception Values: | 9,887,110 | 10,403,309 | ||||
| Catg D1 Exception Values: | 19,090,079 | 17,782,342 | ||||
| Catg G1 Exception Values: | 13,406,020 | 13,941,592 | ||||
| Catg L1 Exception Values: | 5,368,413 | 5,184,125 | ||||
| Total Test Values (4): | 175,992,763 | 181,838,845 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 9,091,942 |
Confidence Interval Values (5)
| State Lower Limit: | 172,746,903 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 175,992,763 | (Within Confidence Interval) |
| State Upper Limit: | 190,930,787 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 192,111,513 | (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