At the beginning of each computer session you need to log on:
At the end of each session save your work on a floppy disk, close Minitab and Explorer, log off
File Handling:
When saving a file click on FiIe > Save Current Project As..
In order to print a graph or the session window click on File > Print
MINITAB 'thinks" in terms of columns, that is all the observations belonging to the same variable go into the same column. Most commands work on all the numbers (words, etc.) in a column
The first row (in gray) is used for column names. This is very important, you should always have a nice descriptive name for your variables (columns)
MINITAB is mostly point-and-click, and you begin by clicking a category on top, just like in most Windows based programs.
Example: As a little exercise consider the WR INC company
What is the mean income of the people working in this company?
What is the mean income of the men and women working in this company?
Turn the computer on
Username: Last six digits of your student ID number
Password: First time you log on leave this blank and then choose your own password
The class webpage is at http://www.math.uprm.edu/wrolke/esma3101
Getting a MINITAB file: File > Open Project (careful: Project, not Worksheet)
In the Open dialog box click the down arrow on the right of the "look in" box and go to: Rolke$ > 3101
In the Save as.. dialog box click the down arrow on the right of the "save in" box and go to your flash drive
If necessary click on the arrow next to the 'Name' box and change the printer to hpm119
Stat > Basic Statistics > Display Descriptive Statistics, Variable= Income
Mean = 33373
Stat > Basic Statistics > Display Descriptive Statistics, Variable= Income, By variables=Gender
Female: 33151 , Male: 33521
Say we decide that everybody this years raise is based on their time with the company, for each year they get an extra $50, what would their new income be?
Calc > Calculator, Store in: NewIncome, Expression: 'Income' + 50 * 'Year'
Who is the employee (his/her id) with the highest income?
From the descriptive command above we see that the highest income is $88400. How can we find the person with this income? Obviously just going through the worksheet is impossible. Here is one solution:
Data > Sort, Sort columns: ID, By column: Income, check Descending