2009 Confidence Interval Detail
093/Grimes
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 | 2,018,720 | 0.9390 | 2,149,862 | 6 | 57 | .004178547 |
| A | 2,205,980 | 0.9780 | 2,255,603 | 6 | 28 | .003439136 |
| A | 1,421,920 | 0.9977 | 1,425,198 | 5 | 10 | .002193651 |
| A | 2,562,060 | 1.0183 | 2,516,017 | 3 | 7 | .001142550 |
| D3 | 18,421,019 | 0.9988 | 18,443,151 | 20 | 666 | .000281527 |
| G1 | 84,259,083 | 1.0071 | 83,665,061 | 20 | 40 | .009337155 |
| Random Totals: | 110,888,782 | 110,454,892 | 60 | 808 | ||
| Catg D1 Exception Values: | 2,368,723 | 2,329,341 | ||||
| Total Test Values (4): | 113,257,505 | 112,784,233 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 5,639,212 |
Confidence Interval Values (5)
| State Lower Limit: | 107,145,021 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 113,257,505 | (Within Confidence Interval) |
| State Upper Limit: | 118,423,445 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 118,710,712 | (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