2009 Confidence Interval Detail
170/Montgomery
093-905/Richards ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,119,620 | 0.9653 | 2,195,815 | 11 | 48 | .012901663 |
| A | 2,319,060 | 0.9573 | 2,422,501 | 10 | 29 | .005734229 |
| A | 2,124,180 | 0.9436 | 2,251,145 | 8 | 18 | .005379052 |
| A | 2,187,850 | 0.9931 | 2,203,051 | 6 | 10 | .010044937 |
| D3 | 4,955,840 | 1.0542 | 4,701,043 | 20 | 298 | .063389216 |
| Random Totals: | 13,706,550 | 13,773,555 | 55 | 403 | ||
| Catg D1 Exception Values: | 3,086,705 | 2,875,487 | ||||
| Total Test Values (4): | 16,793,255 | 16,649,042 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 832,452 |
Confidence Interval Values (5)
| State Lower Limit: | 15,816,590 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 16,793,255 | (Within Confidence Interval) |
| State Upper Limit: | 17,481,494 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 18,355,901 | (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