2008 Confidence Interval Detail
079/Fort Bend
101-914/Katy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 5,040,406,176 | 0.9771 | 5,158,536,666 | 50 | 19,953 | .003729845 |
| F1 | 660,977,080 | 0.9233 | 715,885,498 | 10 | 2,010 | .022158836 |
| Random Totals: | 5,701,383,256 | 5,874,422,164 | 60 | 21,963 | ||
| Catg D1 Exception Values: | 1,799,630 | 2,179,879 | ||||
| Total Test Values (4): | 5,703,182,886 | 5,876,602,043 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 293,830,102 |
Confidence Interval Values (5)
| State Lower Limit: | 5,582,771,941 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 5,703,182,886 | (Within Confidence Interval) |
| State Upper Limit: | 6,170,432,145 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 5,967,310,102 | (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