cabarrus county board of commissioners regular meeting november ...

October 17, 2011 (Regular Meeting)Page4 10 10.1 0.10 00.10 0.0105 07 06.3 0.70 00.49 0.0536 10 07.5 2.50 06.25 0.833X 2 = 5.422The number 5.422 is the chi-square for this comparison. It is evaluatedbased upon what is known as DEGREES OF FREEDOM of the problem and the use ofa table of chi-square values common to most statistics texts. We may sayhere that "degrees of freedom" means the latitude of variation a statisticalproblem has. It is the number of groups (Nk) minus 3 or V = (N k - 3). Inthis case V = 3.Consulting our table, we find that the probability of having a chi-square dueto chance of 5.42 is approximately .75 or sufficiently different from .95 forus to state that the sales do differ significantly from the actualdistribution of all parcels. Hence, we would conclude that we should becareful in the extrapolation of sale parcel statistics to the entiredistribution of all parcels.CCINTRODUCTIONChapter 11COUNTY SPECIFICATIONSThis chapter contains all of the specific c information which pertainsdirectly to the County. Data contained in this chapter includes:Parcel Number ConventionsValuation ModelsImprovement Base Rate SchedulesesImprovement Depreciation SchedulesAuxiliary Area CodesOther Building SchedulesesExtra Feature SchedulesOverview of the Appeals peals ProcessPARCEL NUMBER CONVENTIONSThe following is the format of the County parcel number as required forcoding all input data.This number is edited to help prevent incorrect data from reaching theMaster Appraisal praisal File. In addition, proper use of this format on theTax Roll l File will enable the Master Appraisal File and Tax Roll Filesto be matched for automated transfer of data between these two computerfiles.CABARRUSDDRAFTCABARRUS COUNTY PARCEL NUMBER CONVENTIONSINTERNAL REPRESENTATIONLIMITATIONS01 - 04 Sheet Digit; 4579-4694, 5505-5694, 6601-661305 - 06 Block Digit; 00-9907 - 10 Parcel Digit; 0000-999911 - 14 Divided Interest Alpha / Digit; 0000-9999The following valuation models are the mathematical expressions of value usedin determining estimated market value.The quality factors and formulas for determining the index values of each areshown. All fields shown require an entry even though the entry may be zeroor blank.Buildings that do not conform to the description defined in this chapter willbe priced either through the actual cost found in the area or through the useof Marshall Swift pricing service adjusted to the appraisal date.MODEL 01 SINGLE FAMILY RESIDENTIAL - STRUCTURAL ELEMENT DATAFOUNDATION PTS ROOF STRUCTURE PTS HEATING FUEL PTS01 EARTH 0 08 IRREGULAR TRUSS 13 01 NONE 002 PIERS 2 09 BARJOIST 11 02 OIL/WD/COAL 0A-1Page 150