2007 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 | 611,120,346 | 0.9750 | 626,790,098 | 28 | 5,184 | .004736931 |
| A | 610,915,689 | 0.9850 | 620,218,974 | 29 | 2,652 | .006611719 |
| A | 611,106,730 | 0.9643 | 633,730,924 | 28 | 1,643 | .005522548 |
| A | 610,713,573 | 0.9730 | 627,660,404 | 28 | 861 | .011592450 |
| C | 57,963,994 | 0.9922 | 58,419,667 | 20 | 4,775 | .019693817 |
| C | 57,924,832 | 0.9647 | 60,044,399 | 16 | 1,175 | .009930261 |
| C | 57,684,085 | 0.9732 | 59,272,590 | 17 | 502 | .009934626 |
| C | 57,794,338 | 0.9648 | 59,902,921 | 12 | 196 | .002078834 |
| Random Totals: | 2,675,223,587 | 2,746,039,977 | 178 | 16,988 | ||
| Catg D1 Exception Values: | 13,779,352 | 12,496,796 | ||||
| Total Test Values (4): | 2,689,002,939 | 2,758,536,773 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 137,926,839 |
Confidence Interval Values (5)
| State Lower Limit: | 2,620,609,934 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,689,002,939 | (Within Confidence Interval) |
| State Upper Limit: | 2,896,463,612 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,847,396,257 | (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