Using SPSS

Note: The use of another statistical package such as Minitab is similar to using SPSS

After starting the SSPS program the following dialogue box appears:

If you select Opening an existing file and press OK the following dialogue box appears

The following dialogue box appears:

If the variable names are in the file ask it to read the names. If you do not specify the Range the program will identify the Range:

Once you “click OK”, two windows will appear

One that will contain the output:

The other containing the data:

To perform any statistical Analysis select the Analyze menu:

To calculate descriptive statistics select: Analyze-> Descriptive Statistics-> Descriptives

The following dialogue box appears

Select the variables;

Click the option button to select summary statistics

The following dialogue box appears

Use this dialogue box to select statistics that you want to compute then press continue:

Here is part of the output that appears

Descriptive Statistics

392 38 9 47 23.45 7.805 .457 .123 -.516392 451 4 455 193.65 104.937 .700 .123 -.758392 184 46 230 104.21 38.233 1.098 .123 .753392 4408 732 5140 2967.38 852.294 .481 .123 -.738

MPGENGINEHORSEWEIGHT

Statistic Statistic Statistic Statistic Statistic Statistic Statistic Std. Error StatisticN Range Minimum Maximum Mean Std.

DeviationSkewness Kurtosis

To Graph data select Graph-> Graph type

The following dialogue box appears

Select the variable and press OK

The following graph appear in the output

0 100 200 300 400

ENGINE

0

20

40

60

80

Freq

uenc

y

Mean = 193.65Std. Dev. = 104.937N = 392

Using Minitab

After starting the Minitab the following window appears:

To Open a file go to the menue File-> Open Worksheet

The following dialogue box appears: Asking you to find and select the file:

You should select the file type and browse for the file that you want to open

Here I am opening the Excel file (diet.xls)

The data then appears in a Minitab Spreadsheet

This data has four Variables: WtGn, Diet, Source, Level

Statistical procedures can be found under the Stat menu:

Graphical procedures can be found under the Graph menu: