2009 Confidence Interval Detail
242/Wheeler
242-902/Shamrock ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,711,060 | 0.7096 | 10,866,770 | 11 | 394 | .197656386 |
| A | 7,905,690 | 0.8976 | 8,807,587 | 8 | 167 | .004205170 |
| A | 7,927,060 | 1.0032 | 7,901,774 | 10 | 116 | .039056748 |
| A | 7,836,420 | 0.9474 | 8,271,501 | 8 | 70 | .007115933 |
| D3 | 12,989,360 | 0.8949 | 14,514,873 | 18 | 1,412 | .053013329 |
| F1 | 3,773,810 | 0.9004 | 4,191,259 | 15 | 93 | .031372145 |
| F1 | 4,016,690 | 0.8894 | 4,516,179 | 10 | 16 | .055137097 |
| G1 | 14,445,480 | 0.9994 | 14,454,152 | 14 | 166 | .042625559 |
| G1 | 14,604,350 | 1.0226 | 14,281,586 | 12 | 53 | .029596282 |
| G1 | 15,048,960 | 1.0136 | 14,847,040 | 7 | 13 | .015606104 |
| L1 | 2,602,600 | 1.0056 | 2,588,107 | 7 | 104 | .000967676 |
| L1 | 2,547,410 | 0.9688 | 2,629,449 | 5 | 21 | .020438209 |
| L1 | 2,273,330 | 1.0586 | 2,147,487 | 4 | 9 | .014816532 |
| Random Totals: | 103,682,220 | 110,017,764 | 129 | 2,634 | ||
| Catg J Exception Values: | 6,835,138 | 6,804,665 | ||||
| Catg D1 Exception Values: | 10,725,560 | 9,531,527 | ||||
| Catg F1 Exception Values: | 6,731,730 | 7,877,504 | ||||
| Catg G1 Exception Values: | 13,212,540 | 13,224,737 | ||||
| Catg L1 Exception Values: | 2,424,640 | 2,389,854 | ||||
| Total Test Values (4): | 143,611,828 | 149,846,051 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 7,492,303 |
Confidence Interval Values (5)
| State Lower Limit: | 142,353,748 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 143,611,828 | (Within Confidence Interval) |
| State Upper Limit: | 157,338,354 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 154,363,225 | (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