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091/Grayson
2018 Confidence Interval Detail
091/Grayson
091-901/Bells ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 27,814,649 | 0.9559 | 29,097,865 | 9 | 336 | .008422850 |
| A | 30,210,484 | 0.9636 | 31,351,685 | 7 | 216 | .008655020 |
| A | 33,578,568 | 0.9591 | 35,010,497 | 11 | 178 | .004409759 |
| A | 35,245,475 | 0.9919 | 35,533,295 | 6 | 121 | .001834691 |
| E | 84,442,154 | 1.0488 | 80,513,114 | 18 | 633 | .055216445 |
| Random Totals: | 211,291,330 | 211,506,456 | 51 | 1,484 | ||
| Catg J Exception Values: | 6,573,437 | 7,184,686 | ||||
| Catg D1 Exception Values: | 2,140,760 | 1,373,849 | ||||
| Total Test Values (4): | 220,005,527 | 220,064,991 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 11,003,249 |
Confidence Interval Values (5)
| State Lower Limit: | 209,061,742 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 220,005,527 | (Within Confidence Interval) |
| State Upper Limit: | 231,068,240 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 246,457,052 | (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