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091/Grayson
2018 Confidence Interval Detail
091/Grayson
091-918/Tom Bean ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 34,004,323 | 0.9455 | 35,964,382 | 12 | 370 | .051234339 |
| A | 46,309,242 | 0.9930 | 46,635,692 | 13 | 307 | .000688523 |
| A | 47,812,362 | 0.9628 | 49,659,703 | 10 | 227 | .003524027 |
| A | 48,976,755 | 0.9863 | 49,657,057 | 8 | 155 | .001463130 |
| E | 88,801,858 | 0.9859 | 90,071,871 | 10 | 595 | .007013730 |
| Random Totals: | 265,904,540 | 271,988,705 | 53 | 1,654 | ||
| Catg D1 Exception Values: | 2,828,750 | 2,039,252 | ||||
| Total Test Values (4): | 268,733,290 | 274,027,957 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 13,701,397 |
Confidence Interval Values (5)
| State Lower Limit: | 260,326,560 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 268,733,290 | (Within Confidence Interval) |
| State Upper Limit: | 287,729,354 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 233,685,977 | (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