2008 Confidence Interval Detail
229/Tyler
229-905/Spurger ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,330,640 | 0.7419 | 5,837,229 | 10 | 203 | .047369064 |
| A | 5,593,488 | 0.7692 | 7,271,825 | 16 | 139 | .068853724 |
| A | 5,317,240 | 0.7677 | 6,926,195 | 15 | 88 | .076984618 |
| A | 8,983,295 | 0.9515 | 9,441,193 | 25 | 87 | .039239713 |
| D3 | 15,978,485 | 0.9150 | 17,462,825 | 22 | 1,112 | .063000006 |
| G1 | 19,191,913 | 0.9810 | 19,563,622 | 13 | 22 | .005848710 |
| Random Totals: | 59,395,061 | 66,502,889 | 101 | 1,651 | ||
| Catg D1 Exception Values: | 9,530,330 | 9,495,437 | ||||
| Catg G1 Exception Values: | 8,571,946 | 9,113,086 | ||||
| Total Test Values (4): | 77,497,337 | 85,111,412 |
Margin of Error
| Margin of Error Percent: | 5.0000005 |
|---|---|
| Margin of Error Value: | 4,255,571 |
Confidence Interval Values (5)
| Local Test Value: | 77,497,337 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 80,855,841 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 89,366,983 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 72,619,704 | (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