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091/Grayson
2018 Confidence Interval Detail
091/Grayson
091-905/Howe ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 42,087,162 | 0.9127 | 46,112,810 | 15 | 435 | .015227523 |
| A | 50,816,546 | 0.9861 | 51,532,853 | 21 | 323 | .001285663 |
| A | 68,217,522 | 1.0017 | 68,101,749 | 24 | 318 | .001949867 |
| A | 78,114,427 | 1.0068 | 77,586,837 | 15 | 242 | .001483999 |
| E | 65,350,612 | 1.0304 | 63,422,566 | 11 | 369 | .005140274 |
| F1 | 6,114,874 | 0.7578 | 8,069,245 | 10 | 69 | .061379394 |
| F1 | 4,124,809 | 0.9678 | 4,262,047 | 6 | 12 | .006251852 |
| Random Totals: | 314,825,952 | 319,088,107 | 102 | 1,768 | ||
| Catg J Exception Values: | 15,371,467 | 16,915,968 | ||||
| Catg D1 Exception Values: | 5,440,861 | 4,068,846 | ||||
| Catg F1 Exception Values: | 8,020,750 | 10,247,208 | ||||
| Total Test Values (4): | 343,659,030 | 350,320,129 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,516,006 |
Confidence Interval Values (5)
| State Lower Limit: | 332,804,123 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 343,659,030 | (Within Confidence Interval) |
| State Upper Limit: | 367,836,135 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 309,422,309 | (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, D2, E, 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