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Minitab is statistical software that helps a user to enter data quickly
and then analyse the data.
The different menus in Minitab are :
1. File: This menu is used to open and save worksheets and to
import data.
2. Edit : This menu can be sued to cut and paste text and data across
windows.
3. Data: the menu can be used to sort and recode the data.
4. Calc: This menu can be used to create new columns.
5. Stat: the menu can be used to analyze data. This key menu
performs many useful statistical functions.
6. Graph : the menu is used to graphically represent the data.
7. Editor: the menu can be used to edit and format your data.
8. Window: the menu is used to change windows.
9. Help : this opens a standard Microsoft Help window containing
information on how to use the many features of Minitab.
Introduction
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There are the two windows :
1. Session window
2. Worksheet window
Entering Data
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The session window is used to display the output of an analysis
and the worksheet window is used to enter the data.
Entering data into columns :
Once the columns have been labelled, data can be entered into
the columns.
Pressing Enter will take you to cell below the current cell.
If the little arrow in the upper left corner of the worksheet is
clicked, one can change the direction of data entry so that
pressing Enter will take one to the next column on the same
row.
Data entered into minitab can be numeric or text or date form.
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Once the data has been entered into the worksheet,
the project can be saved from session window.
This can be done by selecting File on the top menu
bar, then Save Project .
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1. Mean : this is the arithmetic value of the data in the
column.
2. Standard deviation : this is the measure of dispersion of
data.
3. Median : the middle value of a set is the median.
4. Minimum : the smallest number in a set is minimum
value.
5. Maximum : the largest number in a set is maximum
value.
For performing this analysis, select Stat-Basic statistics-
store descriptive-statistics.
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Viewing Descriptive Statistics
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This will popup Display Descriptive Statistics window. This window
shows all columns in a list on the left, and a variables box on the
right.
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Select the statistics that need to be viewed. Click statistics to select which
statistics to display. One can check or uncheck any of the boxes. Click OK
when finished deciding.
Click OK in the Display Descriptive Statistics window to display the
selected descriptive statistics in the session window.
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1. Creating a Histogram :
Click the Graph menu. After entering the data set, click
the graph menu at the top of the window. Select
Histogram…
Select the graph type. There are four options for creating a
histogram: “simple”,”with fit”, “with outline and
groups”, and “with fit and groups”. Select “simple”.
Select the data set from the list of available data sets.
Double click the one to be used to create the histogram
from and click OK.
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Creating graphs and charts