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240/Webb
2017 Confidence Interval Detail
240/Webb
240-901/Laredo ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 281,653,106 | 0.9440 | 298,361,341 | 16 | 5,620 | .030146736 |
| A | 311,713,356 | 0.8843 | 352,497,293 | 22 | 4,204 | .030783978 |
| A | 353,052,473 | 0.8899 | 396,732,749 | 18 | 3,502 | .012828253 |
| A | 371,069,512 | 0.9689 | 382,980,196 | 27 | 2,237 | .033057510 |
| B | 53,008,492 | 0.9942 | 53,317,735 | 11 | 382 | .035828772 |
| B | 50,583,639 | 0.9523 | 53,117,336 | 12 | 219 | .030683576 |
| B | 41,154,268 | 0.9240 | 44,539,251 | 11 | 98 | .019421585 |
| B | 36,432,854 | 0.9712 | 37,513,235 | 8 | 38 | .022259782 |
| F1 | 169,115,104 | 1.0017 | 168,828,096 | 13 | 1,066 | .039311644 |
| F1 | 168,995,542 | 0.9282 | 182,068,026 | 13 | 394 | .019512311 |
| F1 | 178,592,801 | 1.0753 | 166,086,488 | 12 | 159 | .065178887 |
| F1 | 196,654,652 | 0.9826 | 200,137,036 | 7 | 15 | .031103948 |
| L1 | 43,355,810 | 0.9674 | 44,816,839 | 10 | 808 | .007453012 |
| L1 | 45,091,606 | 1.0233 | 44,064,894 | 9 | 181 | .002719145 |
| L1 | 37,713,458 | 0.9953 | 37,891,548 | 9 | 55 | .006198034 |
| L1 | 50,810,980 | 1.0154 | 50,040,358 | 5 | 15 | .008840792 |
| Random Totals: | 2,388,997,653 | 2,512,992,421 | 203 | 18,993 | ||
| Catg D1 Exception Values: | 460 | 700 | ||||
| Total Test Values (4): | 2,388,998,113 | 2,512,993,121 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 125,649,656 |
Confidence Interval Values (5)
| State Lower Limit: | 2,387,343,465 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,388,998,113 | (Within Confidence Interval) |
| State Upper Limit: | 2,638,642,777 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,249,404,758 | (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, 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
(6) Includes local value of unstudied property categories and sub-categories