Using IBM SPSS 19 Descriptive Statistics - CBU

Next choose Percentiles from either output frame. The following comes up.
Obviously, there are two different methods at work here. The formulas are given in the SPSS Algorithms Manual.
Typically, use the Weighed Average. Tukey’s Hinges was designed by Tukey for use with the boxplot.
The box covers the Interquartile range (IQR) = Q 75
- Q 25
, with the line being Q 50
, the median. In all three cases,
the Tukey’s Hinges is used. The whiskers extend a maximum of 1.5 IQR from the box. Data points between
1.5 and 3 IQR from the box are indicted by circles and are known as outliers, while those more than 3 IQR from
the box are indicated by asterisks and are known as extremes. In this boxplot, the outliers are the 59th, 60th, and
61st elements of the data list.
Copying Output to Word (for instance). You can easily copy a selection of output or the entire output window
to Word and other programs in the usual fashion. Just select what you wish to copy, choose Edit>Copy,
switch to a Word or other document and choose Edit>Paste. After saving the output, you can also export
it as a Word, Powerpoint, Excel, text, or PDF document from File>Export. For information on this, see
Help>Tutorial>Working with Output or Help>Core System>Working with Output.
Probability Distributions
Binomial Distribution. We shall assume n=15 and p=.75. We will first find P(X ≤ x | 15, .75) for x = 0, ..., 15,
i.e., the cumulative probabilities. First put the numbers 0 through 15 in a column of a worksheet. (Actually, you
only need to enter the numbers whose cumulative probability you desire.) Then click Variable View, type in
number (the name you choose is optional) under Name, and I suggest putting in 0 for Decimal. Still in Variable
View, put the names cum_bin and bin_prob in new rows under Name, and set Width to 12, Decimal
to 10, and Columns to 12 for each of these.
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