2008 Confidence Interval Detail
091/Grayson
091-906/Sherman ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 221,887,601 | 1.0490 | 211,522,975 | 21 | 4,188 | .063174632 |
| A | 223,371,277 | 0.9062 | 246,492,250 | 21 | 2,468 | .023448184 |
| A | 239,358,824 | 0.9677 | 247,348,170 | 16 | 1,834 | .017363288 |
| A | 237,363,438 | 0.9589 | 247,537,218 | 10 | 995 | .042038472 |
| B | 36,069,796 | 0.9836 | 36,671,204 | 14 | 287 | .002464595 |
| B | 29,406,615 | 0.9666 | 30,422,734 | 5 | 20 | .002636942 |
| B | 19,519,232 | 0.9343 | 20,891,825 | 4 | 5 | .003488781 |
| F1 | 115,760,794 | 0.8851 | 130,788,379 | 8 | 471 | .072789515 |
| F1 | 120,613,210 | 0.8490 | 142,065,029 | 7 | 112 | .227211556 |
| F1 | 115,391,580 | 0.8800 | 131,126,795 | 6 | 35 | .015441736 |
| F1 | 130,854,564 | 0.9136 | 143,229,602 | 4 | 12 | .012375806 |
| L1 | 54,942,606 | 1.1715 | 46,899,365 | 7 | 548 | .037128119 |
| L1 | 63,406,872 | 1.0281 | 61,673,837 | 7 | 104 | .000437837 |
| L1 | 48,168,111 | 1.0451 | 46,089,476 | 7 | 23 | .000646269 |
| L1 | 42,426,457 | 1.0079 | 42,093,915 | 3 | 6 | .004560412 |
| Random Totals: | 1,698,540,977 | 1,784,852,774 | 140 | 11,108 | ||
| Catg D1 Exception Values: | 3,792,171 | 2,623,923 | ||||
| Catg B Exception Values: | 5,476,000 | 5,430,000 | ||||
| Total Test Values (4): | 1,707,809,148 | 1,792,906,697 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 89,645,335 |
Confidence Interval Values (5)
| State Lower Limit: | 1,703,261,362 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,707,809,148 | (Within Confidence Interval) |
| State Upper Limit: | 1,882,552,032 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,148,290,228 | (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