2011 Confidence Interval Detail
168/Mitchell
168-903/Westbrook ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 6,551,510 | 0.9274 | 7,064,384 | 10 | 235 | .040934807 |
| A | 6,730,310 | 0.9755 | 6,899,344 | 13 | 133 | .002904027 |
| A | 7,654,690 | 0.9795 | 7,814,895 | 17 | 101 | .002019478 |
| A | 8,062,060 | 0.9899 | 8,144,318 | 14 | 61 | .001653711 |
| G1 | 70,397,821 | 1.0256 | 68,640,621 | 3 | 4 | .000939163 |
| Random Totals: | 99,396,391 | 98,563,562 | 57 | 534 | ||
| Catg D1 Exception Values: | 11,436,400 | 13,075,126 | ||||
| Catg G1 Exception Values: | 442,637,502 | 444,372,245 | ||||
| Total Test Values (4): | 553,470,293 | 556,010,933 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 27,800,547 |
Confidence Interval Values (5)
| State Lower Limit: | 528,210,386 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 553,470,293 | (Within Confidence Interval) |
| State Upper Limit: | 583,811,480 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 612,326,960 | (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