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Deliverable 5 - Hypothesis Tests for Two SamplesCompetencyForm.docx
1. Deliverable 5 - Hypothesis Tests for Two Samples
Competency
Formulate and evaluate hypothesis tests for population
parameters based on sample statistics using both Critical
Regions and P-Values, and be able to state results in a non-
technical way that can be understood by consumers of the data
instead of statisticians.
Dealing with Two Populations
Inferential statistics involves forming conclusions about a
population parameter. We do so by constructing confidence
intervals and testing claims about a population mean and other
statistics. Typically, these methods deal with a sample from one
population. We can extend the methods to situations involving
two populations (and there are many such applications). This
deliverable looks at two scenarios.
Concept being Studied
Your focus is on hypothesis tests and confidence intervals for
two populations using two samples, some of which are
independent and some of which are dependent. These concepts
are an extension of hypothesis testing and confidence intervals
which use statistics from one sample to make conclusions about
population parameters. What to Submit
Your research, calculations, and analysis should be presented on
the spreadsheet
provided.
Tomywife,Barbara,andmysonsSean,Colin,andTimothy,
45. The purpose of this chapter is to provide an introduction to the
fields of human resource
management(HRM)andinformationtechnology(IT),andthecombin
ationofthesetwofieldsinto
humanresource informationsystems(HRIS).Thehistoryof the
fieldofHRMand the impactof
computertechnologyonHRMwillbecovered,aswellas
theadventofusingahumanresource
informationsystemandthesubsequenteffectsonbothHRandITprofe
ssionals.Thedifferenttypes
ofHRactivitieswillbediscussedaswellasthedifferenttypesofinform
ationsystemsusedinHRIS.
AcentralfocusofthischapteristheuseofdatafromtheHRISinsupport
ofmanagerialdecision
making.Thedevelopmentof the fieldofHRIShashadasignificant
impactontheemergenceof
strategichumanresourcemanagement(strategicHRM),asisdiscusse
dinthischapter.Thisfirst
chapterwilllaythegroundworkfortheremainderofthisbook,and,con
sequently,itisimportantto
understandthoroughly
theconceptsandideaspresented.Thischaptercontainsdefinitions
fora
numberoftermsincommonuseintheHRM,IT,andHRISfields.(Notet
hataglossarydefining
thesetermsisalsoprovidedatthebackofthisbook.)Thecentralthemes
ofthisbookintermsofthe
development,implementation,anduseofanHRISwillalsobediscuss
ed.Thechapteralsopresents
amodeloforganizationalfunctioningthatprovidesanoverviewofan
HRISembeddedwithinan
organizationalandglobalbusinessenvironment,withaspecificemph
asisonitsrelationshiptoHR
managementandthestrategicplanningofanorganization.Abriefover
viewofthemajorsectionsof
48. trainingrecordsforallmanagers involved
inpersonnelactions,suchaspromotions, toascertain
whetherornottheyhavereceivedtraininginequalemploymentprovis
ions,especiallyintermsof
unfairgenderdiscrimination.
Memo 2: The second item is a complaint from employees
working in a remote location of the
company,about150milesaway.Theemployeesarecomplainingthatt
heirpayslipsarenotreaching
themontimeandthattheyarefindingitdifficulttogettimelyandaccura
teinformationonthemost
recentleaveandbenefitspoliciesofthecompany.
Memo3:Aletterfromthemarketingmanagerstatesthathehasnotrecei
vedanyupdatedinformation
on thestatusofhis request,made threemonthsago, to
recruitanewsalesperson.Thefailure to
recruitandhireanewsalespersonhashadanegativeeffectontheoveral
lsalesofthecompany’s
productsoverthepastquarter.
Memo4:AletterfromtheHRprofessionalinchargeofthesouthwestre
gionalofficesaysthatsheis
swamped with HR administrative work, particularly personnel
transactions on employees. As a
result,shehasnotbeenabletomeetemployeesinherregiontodescribe
andbegintoimplementthe
recentEmployeeEngagementInitiativeasrequiredbycorporatehead
quarters.
Memo5:Anotefromoneoftheproductionmanagersindicatesthatheh
asreceivedaresignation
49. letterfromahighlyregardedproductionengineer.Sheisresigningbec
auseshehasnotreceivedthe
training on new technology that she was promised when hired.
She notes that most of the other
productionengineershaveattendedthistrainingprogramandhaveha
dverypositivereactionstoit.
Memo6:AstronglywordednotefromthedirectoroffinanceaskstheH
Rdepartmenttojustifythe
increasing costs associated with its operation. The note
indicates that the HR director needs to
developabusinessplanfortheoveralloperationoftheHRdepartmentt
oincludebusinessplansfor
alloftheHRprograms,suchasrecruitingandtraining.Further,thefina
ncedirectorindicatesthat
unless the business cases can demonstrate a positive cost-
benefit ratio, the budget for the HR
departmentwillbereduced,whichwillleadtoreductionsintheHRdep
artmentprofessionalstaff.
As the HR director, your first thought may be to resign since
searching for the information
requiredbythesememosinthemanualrecordsonemployeeswillrequi
reseveraldaysifnotweeks
to complete. However, you have just returned from a
professional conference sponsored by the
SocietyforHumanResourcesManagement(SHRM)andrememberho
wanHRISmaybewhatyou
need!Asthischapterandtheonesthatfollowwillillustrate,anHRISen
ablesanHRdepartmentto
streamline its activities and the demands placed on it by
automating the HR data and processes
necessaryforthemanagementofthehumancapitaloftheorganization
.Thisautomationhelpsdevelop
thecapabilitiestoproduceinformationandreportsontherequestscont
ainedinthememosinthe