2010 Confidence Interval Detail
227/Travis
246-909/Round Rock ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 883,864,780 | 0.9841 | 898,145,290 | 90 | 4,488 | .002813602 |
| A | 942,944,899 | 0.9821 | 960,131,248 | 57 | 3,055 | .002575745 |
| A | 769,388,497 | 0.9772 | 787,339,845 | 58 | 1,946 | .002566179 |
| A | 594,748,902 | 0.9595 | 619,852,946 | 20 | 1,116 | .001764982 |
| B | 164,420,089 | 0.9590 | 171,449,519 | 9 | 137 | .002848626 |
| B | 85,059,378 | 0.9686 | 87,816,826 | 5 | 5 | .000548060 |
| B | 120,860,376 | 0.9601 | 125,883,112 | 3 | 5 | .000185295 |
| B | 66,040,057 | 0.9637 | 68,527,609 | 2 | 2 | .000476023 |
| F1 | 226,632,225 | 0.9430 | 240,331,098 | 9 | 116 | .002952754 |
| F1 | 204,781,728 | 0.9762 | 209,774,358 | 8 | 32 | .003198686 |
| F1 | 209,739,645 | 0.9703 | 216,159,585 | 6 | 13 | .001858456 |
| F1 | 126,617,687 | 1.0073 | 125,700,076 | 3 | 3 | .000324236 |
| L1 | 120,115,167 | 0.9932 | 120,937,542 | 10 | 222 | .000109622 |
| L1 | 114,812,814 | 0.9801 | 117,143,979 | 7 | 25 | .021873258 |
| L1 | 100,338,396 | 0.9971 | 100,630,224 | 5 | 6 | .007727283 |
| Random Totals: | 4,730,364,640 | 4,849,823,257 | 292 | 11,171 | ||
| Catg J Exception Values: | 14,784,344 | 17,069,424 | ||||
| Catg D1 Exception Values: | 231,181 | 177,826 | ||||
| Catg L1 Exception Values: | 109,869,882 | 104,120,851 | ||||
| Total Test Values (4): | 4,855,250,047 | 4,971,191,358 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 248,559,568 |
Confidence Interval Values (5)
| State Lower Limit: | 4,722,631,790 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 4,855,250,047 | (Within Confidence Interval) |
| State Upper Limit: | 5,219,750,926 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 5,154,687,973 | (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