MINITAB Manual For Introduction ToThe Practice of Statistics

1 MINITAB Manual ForDavid Moore and George McCabe sIntroduction To The Practice ofStatisticsMichael EvansUniversity of TorontoiiContentsPrefaceviiI MINITAB for Data Management11 ManualOverviewandConventions .. 32 Accessing and Exiting MINITAB .. 43 64 75 76 97 EnteringDataintoaWorksheet .. ImportingData .. PatternedData .. PrintingDataintheSessionWindow .. InformationaboutaWorksheet .. 218 Saving,Retrieving,andPrinting .. 249 MathematicalOperations .. ColumnandRowStatistics .. SortingData .. ComputingRanks .. 3410 35II MINITAB for Data Analysis371 Looking at Data Tallying Data .. DescribingData .. Histograms .. BarCharts .. PieCharts .. CalculatingtheDensity .. CalculatingtheDistributionFunction .. Calculating the Inverse Distribution Function .. Normal Probability Plots.

2 Exercises .. 632 Looking at Data Transformations .. Exercises .. 743 Producing Exercises .. 824 Probability: The Study of Basic Probability Calculations .. MoreonSamplingfromDistributions .. Simulation for Approximating Probabilities .. Exercises .. 915 Sampling SimulatingSamplingDistributions .. Exercises ..1016 Introduction to .. Simulations for ConfidenceIntervals .. TheChi-SquareDistribution .. Exercises ..113 CONTENTSv7 Inference for TheStudentDistribution .. ComparingTwoSamples .. Exercises ..1248 Inference for InferenceforaSingleProportion .. Exercises ..1329 Inference for Two-Way TheChi-squareTest .. AnalyzingTablesofCounts .. Exercises ..14210 Inference for ..15311 Multiple ..16012 One-Way Analysis of A Categorical Variable and a Quantitative Variable ..17213 Two-Way Analysis of.

3 17914 Bootstrap Methods and Permutation ..18915 Nonparametric The Kruskal-Wallis Test ..195viCONTENTS16 Logistic ..20017 Statistics for Quality: Control and Producing xCharts .. ProducingSCharts ..210 AProjects213B Functions in More MINITAB ConcatenatingColumns .. ConvertingDataTypes .. History .. StackingandUnstackingColumns ..223D Programming in GlobalMacros .. StartupMacro .. InteractiveMacros .. LocalMacros ..231E Matrix Algebra in CreatingMatrices .. CommandsforMatrixOperations ..238 Index243 PrefaceThis MINITAB Manual is to be used as an accompaniment toIntroduction to thePractice of Statistics ,Fifth Edition, by David S. Moore and George P. McCabe,and to the CD-ROM that accompanies this text. We abbreviate the textbooktitle as IPS. It can be used with eitherMinitab Student version 14, MinitabVersion 14 or MINITAB version 13 running under Windows.

4 The text is based onMinitab Student version 14 and MINITAB version 14, but we have also indicatedin the Manual wherever there are differences with MINITAB version 13, in theway these versions work. The core of the Manual is a discussion of the menucommands while not neglecting to refer to the session commands, as these areneeded for certain problems. The material on session commands is always atthe end of each section and can be skipped if the reader will definitely not beusing them. We have provided some Exercises for each is a statistical software package that was designed especially for theteaching of introductory Statistics courses. It is our view that an easy-to-usestatistical software package is a vital and significant component of such a permits the student to focus on statistical concepts and thinking ratherthan computations or the learning of a statistical package.

5 The main aim of anyintroductory Statistics course shouldalways be the why of Statistics ratherthan technical details that do little to stimulate the majority of students or, inour opinion, do little to reinforce the key concepts. IPS succeeds admirably incommunicating the important basic foundations of statistical thinking, and it ishoped that this Manual serves as a useful adjunct to the is natural to ask why MINITAB is advocated for the course. In the author sexperience, ease of learning and use are the salient features of the package, withobvious benefits to the student and to the instructor, who can relegate manydetails to the software. While more sophisticated packages are necessary forhigher-level professional work, it is our experience that attempting to teach oneof these in a course forces too much attention on technical aspects. The timestudents need to spend to learn MINITAB is relatively small and it is a greatvirtue.

6 Further MINITAB will serve as a perfectly adequate tool for many of thestatistical problems students will encounter in their undergraduate Manual is divided into two parts. Part I is an Introduction that pro-vides the necessary details to start using MINITAB and, in particular, how to useworksheets. We recommend reading Part I before starting to use MINITAB . Over-all, the introductory Part I serves as a reference for most of the nonstatisticalcommands in II follows the structure of the textbook. Each chapter is titled andnumbered as in IPS. The last two chapters are not in IPS but correspond tooptional material included on the CD-ROM. The MINITAB commands relevant todoing the problems in each IPS chapter are introduced and their use chapter concludes with a set of exercises, some of which are modificationsof or related to problems in IPS and many of which are new and specificallydesigned to ensure that the relevant MINITAB material has been are also appendices dealing with some more advanced features of MINITAB ,such as programming in MINITAB and matrix Manual does not attempt a complete coverage of MINITAB .

7 Rather, weintroduce and discuss those concepts in MINITAB that we feel are most relevantfor a student studying introductory Statistics with IPS. We do introduce someconcepts that are, strictly speaking, not necessary for solving the problems inIPS where we feel that they were likely to prove useful in a large number ofdata analysis problems encountered outside the classroom. While the Manual sprimary goal is to teach MINITAB , generally we want to help develop strong dataanalytic skills in conjunction with the text and the to W. H. Freeman and Company for their help and thanks to Rosemary and further information on MINITAB software, contact: MINITAB Enterprise DriveState College, PA 16801 USAph: : : IMinitab for DataManagement1 New MINITAB commands discussed in this partC alcICal culatorC alcIC olumn StatisticsC alcIMake P atterned DataC alcIRo w StatisticsE ditIC opy CellsE ditIC ut CellsE ditIP aste CellsE ditISelect A ll CellsE ditIU ndo CutE ditIU ndo PasteE ditorIEna ble CommandsEd itorII nsert CellsEd itorIInsert ColumnsEd itorIInsert Rows Ed itorIO utput EditableF ileIEx itFileINewF ileIOther F ilesIE xport Special Text F ileIOpen W orksheetF ileIOther F ilesII mport Special Text F ileIP rint Session WindowF ileIP rint WorksheetF ileIS ave Current WorksheetF ileIS ave Current Worksheet AsF ileISav e Session Window AsH elpD ataIC opy ColumnsD ataIDi splay DataD ataIE rase VariablesD ataIR ankD ataIS ortW indowIProject Manager1 ManualOverviewandConventionsMinitab is a software package for carryingout statistical, numerical.

8 And graph-ical calculations. This Manual does not attempt to describe all the possibleimplementations or the full extent of the package. We limit our discussion tothose features common to the most recent versions of MINITAB running under theWindows operating system. version 14 refers to the latest version of MINITAB atthe time of writing this Manual , but we also make reference to version 13 whenthere are differences. This Manual can be used with both this Manual , special statistical or MINITAB concepts will be highlighted initalicfont. You should be sure that you understand these , we will be discussing themenu commandsthat are available inMinitab. Menu commands are accessed by clicking the left button of the mouse34 MINITAB for Data Managementon items in lists. We use a special notation for menu commands. For example,AIBIC istobeinterpretedasleftclickthecommandAo nthemenubar,theninthelist that drops down, left click the command B, and,finally, left click C.

9 Themenu commands will be denoted in ordinary font (the actual appearance mayvary slightly depending on the version of Windows you use).There are alsosession commandsandsubcommandsthat are typed by theuser rather than using the mouse. These will be denoted inboldfont. Anycommands that we actually type, and the output obtained, will be denotedintypewriterfont, as will the names of anyfiles used by MINITAB , variables,constants, and recommend that whenever feasible, the reader use MINITAB to do theproblems in the text. While many problems can be done by hand, you willsave a considerable amount of time and avoid errors by learning to use Minitabeffectively. We also recommend that you try out the MINITAB commands as youread about them, as this will ensure full Accessing and Exiting MinitabThefirst thing you should do isfind out how to access the MINITAB information will come from your instructor, system personnel, or fromyour software documentation if you have purchased MINITAB to run on your most cases, you will double click an icon, such as that shown in , that corresponds to the MINITAB program.

10 Alternatively, you can use theStart button and click on MINITAB in the Programs list. In this case, the programopens with aMinitab window,such as the one shown in Display The Minitabwindow is divided into two sub-windows with the upper window called theSession windowand the lower one called theData clicking the mouse anywhere on a particular window brings that windowto the foreground, , makes it theactivewindow, and the border at the top ofthe window turns dark blue. For example, clicking in the Session window willmake that window active. Alternatively, you can use the command W indowIS ession in themenu barat the top of the MINITAB window to make this : MINITAB for Data Management5 Display : MINITAB may not see theMTB>prompt in the Session window, and for some things described in this Manual itis important that you do so. You can ensure that this prompt always appearsin your Session window by using T oolsIO ptionsISession WindowISub-mitting Commands, clicking on the Enable radio button and then clicking onOK.