copyright © 2013, 2009, and 2007, pearson education, inc. chapter 1 statistics: the art and science...
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Copyright © 2013, 2009, and 2007, Pearson Education, Inc.
Chapter 1Statistics: The Art and
Science of Learning from Data
Section 1.3
Using Calculators and Computers
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Using (and Misusing) Statistics Software and Calculators
MINITAB and SPSS are two popular statistical software packages on college campuses. The TI-83 + and TI-84 graphing calculators, which have similar output, are useful as portable tools for generating simple statistics and graphs.
Using Technology The problem is that a computer will perform the
statistical analysis you request whether or not its use is valid for the given situation. You, not technology, must select valid analyses.
Using Calculators and Computers
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Data files Large sets of data are typically organized in a
spreadsheet format known as a data file. Each row contains measurements for a particular
subject. Each column contains measurements for a
particular characteristic.Databases
An existing archive collection of data files. Not all databases give reliable information. Before
you give credence to such data, verify that the data are from a trustworthy source.
Using Calculators and Computers
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Applets A short application program for performing a
specific task.
Useful for performing activities that illustrate the ideas of statistics.
This is a type of simulation – using a computer to mimic what would actually happen if you elected a sample and used statistics in real life.
Using Calculators and Computers