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Minitab - USING MINITAB A SHORT GUIDE VIA EXAMPLES The goal...

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USING MINITAB: A SHORT GUIDE VIA EXAMPLES The goal of this document is to provide you, the student in Math 112, with a guide to some of the tools of the statistical software package MINITAB as they directly pertain to the analysis of data you will carry out in Math 112, in conjunction with the textbook Introduction to the Practice of Statistics by David Moore and George McCabe. This guide is organized around examples. To help you get started, it includes pictures of some screens you'll see and printouts of the commands. It is neither a complete list of MINITAB capabilities nor a complete guide to all of the uses of MINITAB with this textbook, but is designed to hit the highlights and a few sticking points, so to speak, of the use of MINITAB for problems in the text, based on the Spring 1997 and Fall 1997 courses. For a brief dictionary of MINITAB functions and their EXCEL equivalents, plus more information about EXCEL, see elsewhere in this website. NOTE: This guide does update some of the MINITAB commands given in Introduction to the Practice of Statistics . CONTENTS 1. Starting and running MINITAB on grounds 2. Describing distributions (Ch. 1 of text) 3. Scatterplots, Linear Regression, and Correlation (Ch. 2 of text) 4. Inference for Regression (Section 10.1 of text) 1. Starting and running MINITAB on grounds OPENING MINITAB MINITAB should be available in any on-grounds computer lab. Begin from the Windows menu, and look for the folder marked STATISTICS ( or perhaps MATHEMATICS, if there is no STATISTICS folder listed). Clicking to open this file, you should see the MINITAB icon (a blue- and white-striped arrow, labelled MINITAB). Clicking on this will open MINITAB, displaying a 'session window' on top and a 'data window' below.
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ENTERING DATA The cursor can be placed in either window, but to begin to use MINITAB we will, of course, need to enter some data. Upon opening a new file, the data window should be ready to receive columns of data. Simply place the cursor in the first row (box) of column C1, enter the first number of your data set, and hit 'Enter'. MINITAB will then automatically move down to the second row in this column, making data easy to enter. Note that you can label your column by entering a name in the box above the first row but still below the label 'C1'. In order to have a data set to use when following the examples below, enter the following numbers in C1: (*) 5 6.6 5.2 6.1 7.4 8.7 5.4 6.8 7.1 7.4 The data should appear in the data window as so:
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You can print out the data window at any time by locating your cursor anywhere inside the window, and clicking on the 'Print' icon below the toolbar. The printout will ignore empty columns. PRINTING As noted immediately above, the 'Print' icon (a little printer, of course) can be used to print out the data window. Similarly, you can move the cursor to the session window to print the output placed in this window by some of the commands we'll soon explore. You can also print graph windows by clicking on the graph before attempting to print.
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