Appl Bus Stat
Appl Bus Stat OMS 501
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This 26 page Class Notes was uploaded by Sage Beer on Thursday October 29, 2015. The Class Notes belongs to OMS 501 at University of Michigan taught by Staff in Fall. Since its upload, it has received 16 views. For similar materials see /class/231469/oms-501-university-of-michigan in Business, management at University of Michigan.
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Date Created: 10/29/15
Analysis Si 544 Introductory Statistics and Data Preliminaries Lada Adamic School of Information University of Michigan Jan 3rd 2007 Outline motivation Dick DeVaux quotWe haven39t evolved to be statisticians Our students who think statistics is an unnatural subject are right This isn39t how humans think naturally But it is how humans think rationally And it is how scientists think This is the way we must think it we are to make progress in understanding how the world works and for that matter how we ourselves workquot motivation Gary King Department of Government Harvard University quotStatisticians will rule the world When discussing the opportunities that availability of massive data sets will present for addressing questions in social science how see things C There is lots of interesting data D We need to describe what is going on For this we need descriptive statistics U need to summarize U need to visualize C We need to tell whether what we are seeing is an actual trend or part of the random noise To this end we need to D Understand probability D Understand probability distributions what is the likelihood that this would occur by chance Mom Dior 3amp1le D Atown has two hospitals El Large hospital about 100 babies a day El Smaller hospital about 15 babies a day El Over the course of the year which hospital it either would probably have more days in which more than 60 of the babies born are male how i see loomtntmjedl D In order to understand what is going on we need a model E For example we want to figure out whether watching violent movies is correlated with violent behavior C It is standard to attempt to reject the null hypothesis that there is no correlation between the variables 3 Consideration 1 data sample I experimental design D confounding variables Cl choice of method What well E Probability E1 Descriptive statistics 1 lnferential Statistics D Sampling distributions confidence intervals hypothesis tests and pvalues D Estimating population mean El Comparing population means El Analysis of variance El Univariate and multivariate OLS Regression D Analysis of categorical data D Data Collection Cl Experimental design Outline 1mm D This is SI 544 1 I39m Lada Adamic Iadamicumichedu El Please respond to survey on office hours httpdoodechparticipationhtmpod29v979qxx4tdvmr5 El Make sure you have access to the cTooIs site El Some materials are available at http V H 39Hmir h nrln 39 39 39 quotquot4 3919 meetings I every Thursday in West Hall 409 I every Tuesday in the DIAD 4th floor of Shapiro library I work on your own laptop I work on lab PC or Mac I Imam 1 Introductory Statistics for the Behavioral Sciences 5th m or6th Edition y Welkowitz Ewen and Cohen itare mkh mtuitw V VC We will be using R Cl E C 3 open source http www riproject org many additional modules available cram riproject org on cTools under Resources you can find several nice online tutorials steeper learning curve than most other statistical packages but 1 free if so you can use it whatever your job may be r programmable if you can create your own modules D you will be able to switch to other software relatively easily grading scheme l 20 midterm in class I 25 final take home I 25 problem sets I I will drop your lowest problem set score I 20 group project small I 5 news evaluation l 5 participation I attendance I speaking up in class I posting to cTooIs problem sets E turn in only in PDF format El turn in only on cTools D late assignments D can turn in up to 2 days late with a 10 penality a email me for extensions for legit reasons medical amp family emergencies include a note about granted extension on cTools when submitting E grader Laurel Shipley email me if there are any questions about grading D you are encouraged to collaborate with your classmates but turn in your own work 3 run your own R code Toolg ar ticion You can earn participation points by posting content to cTooIs E post clarification questions to cTooIs There is no point to being stuck on some syntax in R for hours on end Just asktor help on the cTooIs forum I answer others39 questions D post interesting links group project The project is not a major project At the end you will turn in 3 pages El form groups of 34 people 1 time line form group and select topic 2 pts March 4th project progress report 3 pts April 8 project report 10 pts April 10 presentations 5 pts 1 examples of topics from last year l history of violent arrests and NBA performance D temperature and beer consumption El number of books and ratings on LibraryThing D pacing and rowing performance news review SI I 1 139 1 2152 an I 5 of your final grade alaAnalysIs I I I I I I find news article and critically compare to original study Ggggle New m mm v semmewzu mm mm r 4n a m m wm pasmuwnunamgmmmegerms p 7 I n r W aim mamas r m cm andmmhammnwdwbanmnhnvmavouhhcwacwsmc umngbm andmmumm I Busn Massacnuwlls hmquot 15mm smu F 153 Dru mmemurr vrun m mm 22 qu Emmahvwm mm m m requenl axmnnmnns mu m pmaacmnvs mfg wwwm m mam aHmm 14qu mm by m r Mum yupquot y r 9 mm and my a arr m h J m m r quotr El NEW Nun w mar amhhes 35 390 n fess n m 13mm M W WWI mmmmmmmmw mmm mmwWlmmmmaymmu Wm Mnbwm r 7 an Mums WM quotKm 12223135 W mm mm m m m m mm m mum m an and damn ma 2 F has h m WWW mommymmr m m mm mm m mm m mmmmv 39nny mme lhrmchnn ng mu Manama Susm s OMAK OUQSALAD n m H mman mm m mquot nudyl v mm am my Wm M nlcmmms pmhnmy mum m mmmlamm c w beta cuminm Thaw exemptions for HCI and IAR stats requirement mok a nompvehensrve appHed sms couvse msm mma p wwwrpersona1 umlcheduladam1c Courses51544 fO6statswalverhtml owses can take instead E Stat 350 Introduction to statistics and data analysis undergrad cannot count as cognate J Stat 400 Applied Statistical Methods 1 Stat 500 Applied Statistical Methods note has 350 as a prerequisite D Bbsk b csSlOhttpWww7personalumich eduNkwelchElObiostatSlOhtm Biostatistics 503 D httpwwwsph displayicourse Biostatistics 553 D httpwwwsph displayicourse umicheduiscrcaid cfmCourseIDBIOSTAT503 umicheduiscrcaid cfmcourseIDBIOSTAT553 E Sociology 510 statistics 1 OMS 501 Applied Business Statistics Why Wu mwk l e lll We mum j neat datasets relevant to HCI amp IAR 1 we focus on the relevant skills and critical thinking a we go easy on the math C no calculus required 1 some algebra helpful um wiman cNEN w m or w mus mm YEUMmDGV x vmmsz ma m smwm mm mm mm mm NE um MAN m w Ya no mm at A w RUE moms me a law l mm 44 Mm WWW m w a w 2 mm vsw A as we u M m Sum Mum smug Outline data types I Quantitative I Discrete I Continuous I Qualitative I Nominal categorical I Ordinal rank ordered categories exercise name thedata type I bacteria count I occupations of shoppers l USNWR ranking of university I marital status I time in months since last auto maintenance I handedness amede
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