2009 Confidence Interval Detail
019/Bowie
019-905/New Boston ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 35,456,260 | 1.0377 | 34,168,122 | 11 | 793 | .016641234 |
| A | 35,720,478 | 1.0066 | 35,486,269 | 11 | 482 | .008625846 |
| A | 40,743,318 | 0.9750 | 41,788,018 | 11 | 389 | .012698956 |
| A | 42,360,209 | 1.0064 | 42,090,828 | 10 | 247 | .002983500 |
| D3 | 55,534,956 | 0.9490 | 58,519,448 | 23 | 1,894 | .026438659 |
| F1 | 13,477,166 | 0.8525 | 15,808,992 | 8 | 102 | .095187345 |
| F1 | 15,402,881 | 0.9293 | 16,574,713 | 7 | 32 | .026255814 |
| F1 | 12,009,821 | 0.8377 | 14,336,661 | 4 | 10 | .088036966 |
| L1 | 4,771,855 | 1.0958 | 4,354,677 | 7 | 106 | .004300134 |
| L1 | 4,613,266 | 1.1259 | 4,097,403 | 5 | 23 | .012975108 |
| L1 | 3,983,145 | 1.0816 | 3,682,641 | 4 | 9 | .027541247 |
| Random Totals: | 264,073,355 | 270,907,772 | 101 | 4,087 | ||
| Catg D1 Exception Values: | 5,979,074 | 5,033,896 | ||||
| Catg F1 Exception Values: | 12,248,056 | 13,231,357 | ||||
| Catg L1 Exception Values: | 8,801,334 | 8,586,145 | ||||
| Total Test Values (4): | 291,101,819 | 297,759,170 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 14,887,959 |
Confidence Interval Values (5)
| State Lower Limit: | 282,871,211 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 291,101,819 | (Within Confidence Interval) |
| State Upper Limit: | 312,647,129 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 326,791,929 | (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