2009 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 | 228,789,807 | 0.9806 | 233,316,140 | 44 | 4,211 | .018768562 |
| A | 239,818,409 | 0.9920 | 241,752,428 | 51 | 2,594 | .009317903 |
| A | 232,613,349 | 0.9952 | 233,735,278 | 44 | 1,740 | .002397664 |
| A | 258,947,835 | 1.0076 | 256,994,675 | 47 | 1,051 | .005766343 |
| B | 31,247,048 | 0.9557 | 32,695,457 | 8 | 279 | .023779866 |
| B | 32,270,503 | 0.6837 | 47,199,800 | 9 | 46 | .041386563 |
| B | 35,266,315 | 0.7867 | 44,828,162 | 5 | 9 | .041707410 |
| B | 33,414,628 | 0.7927 | 42,152,930 | 2 | 3 | .001763520 |
| F1 | 121,070,651 | 0.8444 | 143,380,686 | 10 | 460 | .082287399 |
| F1 | 124,142,536 | 0.9840 | 126,161,114 | 8 | 105 | .019592438 |
| F1 | 127,134,896 | 0.8606 | 147,728,208 | 6 | 39 | .024520774 |
| F1 | 122,546,827 | 0.9515 | 128,793,302 | 5 | 11 | .000886425 |
| L1 | 53,831,768 | 1.0077 | 53,420,431 | 7 | 547 | .003388249 |
| L1 | 47,836,238 | 0.9399 | 50,895,029 | 7 | 90 | .029353158 |
| L1 | 63,448,751 | 0.9758 | 65,022,290 | 6 | 36 | .005210271 |
| L1 | 72,079,261 | 1.0150 | 71,014,050 | 4 | 11 | .000470826 |
| Random Totals: | 1,824,458,822 | 1,919,089,980 | 263 | 11,232 | ||
| Catg D1 Exception Values: | 3,360,231 | 2,498,095 | ||||
| Total Test Values (4): | 1,827,819,053 | 1,921,588,075 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 96,079,404 |
Confidence Interval Values (5)
| State Lower Limit: | 1,825,508,671 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,827,819,053 | (Within Confidence Interval) |
| State Upper Limit: | 2,017,667,479 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,299,689,566 | (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