Data Analysis for Managers MIS 131 Prerequisites MATH 23 or 24 MIS 1 ABC STAT 1 Exceptions?…none Recommended OBE 130 COMS 103 Writing Proficiency Required Text Data Analysis for Managers [Ninth Edition] Taylor & Hopfe Overview Prepared Present Exams Midterms October 7th November 16th Final 9:00 Dec 14th 10:30 & 1:30 Dec 16th Final Exam Final Exam Schedule 9:00 a.m. Tues., Dec. 14 8:00 a.m. - 10:00 a.m. 10:30 a.m. Thurs., Dec. 16 10:15 a.m. - 12:15 p.m. 1:30 p.m. Thurs., Dec. 16 12:45 p.m. - 2:45 p.m. Quizzes Unannounced Random In-class No make-ups Statistical Software Saclink account required for free copy of StatGraphics Plus Win ® 5.1. MS Office 2003 may be obtained at Bookstore $75 (with current Student ID). Statistical Software StatGraphics Plus Win ® 5.1 Saclink Account Down Load www.csus.edu/UCCS 53304001039594 Statistical Software Suggestion……… Before downloading StatGraphics, create a folder on desktop … MIS 131 Download all StatGraphics files to the folder. Then, to install StatGraphics, use icon with blue-screen computer. Will need Saclink name and password. Statistical Software Have Microsoft Word, Excel, and PowerPoint installed on your computer … preferably MS Office 2003. Ensure that “Data Analysis” is available in Excel. [Go to “Tools”, then to “addins” and click on both “Analysis ToolPak” options.] Proc-List Set e-mail for “plain text,” Send message to: LISTPROC@CSUS.EDU In the message text area, type: SUBSCRIBE HOPFE131-L First name Last name END Grading Exams Quizzes Cases Homework Research Project 100 points 10 points [varies] [varies] 100 points Total points (approximately) = TBD Grade Percents A AB+ B B- 93 - 100% 90 - 92 87 - 89 83 - 86 80 - 82 C+ C CD+ D DNo Incomplete (I) F 77 - 79 73 - 76 70 - 72 67 - 69 63 - 66 60 - 62 < 60 Academic Dishonesty Pledge Penalty Violations of proper ethical conduct will NOT be tolerated. Course Outline • Schedule dates will hold [additional assignments may occur] • Assignments given in class and via MIS 131 Proc-List generated e-mail Cases team effort 1-3 members statistical analysis • based on provided data Cross-Sectional Time Series Quality Control Research Project team effort 2-4 members statistical analysis • Self-provided data Cross-Sectional Time Series Due Dates At beginning of class “Courtesy Extension Period” (10 %) Questions? Download Install software this week. software NLT this week. Review Stat 1? Data Types Cross Sectional same random variable, multiple observations at a point in time Time Series same random variable, observations measured at consecutive equally spaced intervals of time Variation Common Numerous small causes of variability that are inherent to any system, operate randomly or by chance Specific Assignable, have relatively large effects on process, occur occasionally or sporadic z- or t-distribution? Sample size? • n 30 • n > 30 Population variance? • known • unknown Stat 1 Review parameters vs. statistics mean variance sampling sampling distribution Stat 1 Review normal distribution confidence intervals hypothesis testing p-value z- vs. t-distribution Decision Results H0: Innocent Jury Trial H0 Test Actual Situation Verdict Innocent Guilty Innocent Guilty Correct Error Error Correct Actual Situation Decision H0 True H0 False Do Not Reject H0 Correct Type II Error () Type I Error () Correct Reject H0 Levine, Prentice-Hall P-value Used to make rejection decision • if p-value , reject H0 • true value of Levine, Prentice-Hall Questions? ANOVA