2006 Confidence Interval Detail
170/Montgomery
170-903/Montgomery ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 516,690,715 | 0.9374 | 551,195,557 | 24 | 5,128 | .005076735 |
| A | 516,587,319 | 0.9264 | 557,628,799 | 27 | 2,490 | .006476778 |
| A | 516,793,182 | 0.9648 | 535,647,991 | 31 | 1,524 | .016174730 |
| A | 516,192,928 | 0.9220 | 559,862,178 | 20 | 783 | .009222224 |
| C | 50,972,202 | 0.9000 | 56,635,780 | 8 | 4,967 | .003820069 |
| C | 48,752,016 | 0.9664 | 50,447,036 | 7 | 1,309 | .004853792 |
| C | 47,586,264 | 0.9964 | 47,758,193 | 10 | 564 | .005779063 |
| C | 48,857,708 | 0.9836 | 49,672,334 | 9 | 266 | .009540481 |
| Random Totals: | 2,262,432,334 | 2,408,847,868 | 136 | 17,031 | ||
| Catg D1 Exception Values: | 13,640,520 | 12,507,458 | ||||
| Total Test Values (4): | 2,276,072,854 | 2,421,355,326 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 121,067,766 |
Confidence Interval Values (5)
| Local Test Value: | 2,276,072,854 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 2,300,287,560 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 2,542,423,092 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,546,081,681 | (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