2010 Confidence Interval Detail
090/Gray
090-903/McLean ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,495,290 | 0.9157 | 2,725,008 | 8 | 187 | .017049772 |
| A | 2,282,250 | 0.9268 | 2,462,505 | 9 | 88 | .042449571 |
| A | 2,753,120 | 0.8916 | 3,087,842 | 8 | 60 | .008925392 |
| A | 2,377,970 | 1.0059 | 2,364,022 | 6 | 25 | .013871375 |
| G1 | 21,723,538 | 0.9868 | 22,014,124 | 15 | 221 | .026155312 |
| G1 | 21,670,544 | 1.0508 | 20,622,901 | 14 | 118 | .026497662 |
| G1 | 21,928,155 | 1.0094 | 21,723,950 | 13 | 68 | .016881038 |
| G1 | 21,282,272 | 1.0810 | 19,687,578 | 10 | 27 | .011821821 |
| Random Totals: | 96,513,139 | 94,687,930 | 83 | 794 | ||
| Catg J Exception Values: | 4,718,584 | 5,412,081 | ||||
| Catg D1 Exception Values: | 4,864,710 | 9,106,762 | ||||
| Total Test Values (4): | 106,096,433 | 109,206,773 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 5,460,339 |
Confidence Interval Values (5)
| State Lower Limit: | 103,746,434 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 106,096,433 | (Within Confidence Interval) |
| State Upper Limit: | 114,667,112 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 130,596,581 | (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