2008 Confidence Interval Detail
101/Harris
237-904/Waller ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 384,904,519 | 0.9830 | 391,561,057 | 20 | 3,044 | .086654221 |
| C | 46,166,970 | 0.9169 | 50,351,151 | 10 | 1,456 | .051482990 |
| D3 | 56,396,907 | 0.8886 | 63,467,147 | 10 | 1,496 | .111343665 |
| F1 | 59,000,811 | 0.9892 | 59,644,977 | 10 | 128 | .011042829 |
| Random Totals: | 546,469,207 | 565,024,332 | 50 | 6,124 | ||
| Catg D1 Exception Values: | 6,215,700 | 6,404,400 | ||||
| Total Test Values (4): | 552,684,907 | 571,428,732 |
Margin of Error
| Margin of Error Percent: | 9.4450424 |
|---|---|
| Margin of Error Value: | 53,971,686 |
Confidence Interval Values (5)
| State Lower Limit: | 517,457,046 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 552,684,907 | (Within Confidence Interval) |
| State Upper Limit: | 625,400,418 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 566,709,229 | (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