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Appendix B: Computer Resources 351
EXAMPLE B.7
Prepare the graphical summary for the following data:
Solution:
23 25 20 16 19 55 42 25
28 29 36 26 27 35 41 55
20 24 29 26 37 38 24 26
34 36 38 39 32 33
1. Enter the data in column C1 of the data window (the same as in Example B.3).
2. Select Stat from the command menu.
3. Click Basic Statistics and then Graphical Summary in the pull-down menus
available under the Stat command menu.
4. Enter C1 into the Graph Variables box and click OK.
5. The Minitab output will appear in the summary window as shown in Figure B.11.
Figure B.11 Minitab display of graphical summary for the data in Example B.7.
Summary. These commands prompt a dialog box entitled Graphical Summary
to appear. In this dialog box enter the names of the variables you want summarized
under Variables. If you have not entered the names of the variables in the
data columns then under Variables just enter C1, C2, and so on. In the box next
to Confidence Level enter the appropriate value of the confidence level and then
click OK. This option provides both graphical and numerical descriptive statistics.
A separate graph and summary statistics are displayed for each variable.