2009 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 | 2,232,170 | 0.9740 | 2,291,756 | 7 | 171 | .006392479 |
| A | 2,426,860 | 0.9392 | 2,583,965 | 7 | 96 | .063696603 |
| A | 2,205,300 | 0.9934 | 2,219,952 | 6 | 50 | .043715302 |
| A | 2,494,210 | 1.0458 | 2,384,978 | 6 | 27 | .029065821 |
| G1 | 25,436,667 | 0.9653 | 26,351,048 | 9 | 222 | .028552779 |
| G1 | 25,506,701 | 1.0283 | 24,804,727 | 9 | 121 | .025692223 |
| G1 | 25,335,540 | 0.9657 | 26,235,415 | 8 | 73 | .029822485 |
| G1 | 25,172,330 | 1.0354 | 24,311,696 | 7 | 34 | .004190103 |
| Random Totals: | 110,809,778 | 111,183,537 | 59 | 794 | ||
| Catg J Exception Values: | 5,122,160 | 4,412,644 | ||||
| Catg D1 Exception Values: | 4,727,480 | 8,218,848 | ||||
| Total Test Values (4): | 120,659,418 | 123,815,029 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 6,190,751 |
Confidence Interval Values (5)
| State Lower Limit: | 117,624,278 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 120,659,418 | (Within Confidence Interval) |
| State Upper Limit: | 130,005,780 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 149,525,376 | (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