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091/Grayson
2018 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 | 303,200,702 | 0.9493 | 319,393,977 | 91 | 4,230 | .019428023 |
| A | 357,732,134 | 0.9410 | 380,161,673 | 121 | 2,821 | .018293649 |
| A | 351,704,296 | 0.9695 | 362,768,743 | 108 | 1,942 | .003862200 |
| A | 404,285,299 | 0.9801 | 412,493,928 | 84 | 1,350 | .004032556 |
| B | 54,372,106 | 0.9269 | 58,660,164 | 12 | 252 | .007594132 |
| B | 44,121,674 | 0.6188 | 71,301,994 | 5 | 11 | .012714896 |
| B | 41,421,780 | 0.6331 | 65,426,915 | 5 | 7 | .106919834 |
| F1 | 181,142,782 | 0.8766 | 206,642,462 | 24 | 476 | .038341189 |
| F1 | 194,415,974 | 0.9050 | 214,824,281 | 11 | 108 | .054048909 |
| F1 | 189,917,419 | 1.0661 | 178,142,218 | 10 | 33 | .038414554 |
| F1 | 140,119,118 | 1.0928 | 128,220,276 | 4 | 6 | .024538823 |
| L1 | 57,808,742 | 0.9568 | 60,418,836 | 11 | 631 | .062338862 |
| L1 | 59,395,469 | 1.0611 | 55,975,374 | 10 | 117 | .009894904 |
| L1 | 52,403,874 | 1.0793 | 48,553,575 | 9 | 35 | .042452734 |
| L1 | 57,712,328 | 1.0496 | 54,985,069 | 5 | 11 | .012935207 |
| Random Totals: | 2,489,753,697 | 2,617,969,485 | 510 | 12,030 | ||
| Catg D1 Exception Values: | 2,477,524 | 1,744,258 | ||||
| Total Test Values (4): | 2,492,231,221 | 2,619,713,743 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 130,985,687 |
Confidence Interval Values (5)
| State Lower Limit: | 2,488,728,056 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,492,231,221 | (Within Confidence Interval) |
| State Upper Limit: | 2,750,699,430 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 3,119,770,527 | (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