User Manual
For
Statistical Analysis Tool
Version 1.0
Prepared by
Padmaja Havaldar
Kansas State University
Table of Contents
1. General Information
1.1 System Overview
2. Using the System
2.1 Log In
2.2 Analysis
2.3 Results
3. System Configuration
1. General Information
1.1. System Overview
The Statistical Analysis Tool is a web-based application for registered users to perform different statistical analysis on the user data. The website will allow four types of analysis to be done on the data; the regression analysis, the chi-square test, the correlation test and the hypothesis test. The website in particular will be able to provide analysis for questions of the nature of,
· Is there arelationship between the grade point average (GPA) of an alumni member and the salary bracket that he currently belongs to?
· Is there a difference between the average salaries of the Master's student and the average salaries of thePhD students at a 5% level of significance?
· Does higher GPA result in higher salaries for masters students
· Does higher GPA result in higher salaries for PhD students
· Is getting a job within 3 months of graduation independent of the citizenship of the student at the Masters level?
2. Using the System
The user has to enter the URL , http://procyon.cis.ksu.edu:8000/lastapp/indexproj.htm to take him to the system.
In order to use the system and perform analysis, the user has to log in to the system. This can be done only if the user has registered to be a member of this website. An online membership form is provided by the website to enable the user to register. Once a member, the user can freely access the data analysis webpage which provides the research questions pertaining to the four tests. The results are displayed in the form of graphs or tables. The detailed steps are explained below:
2.1 Log In
The member has to log in to perform analysis by:
· Typing his user name in the UserName field provided at the right hand corner of the webpage
· Typing his password in the Password field.
· Clicking on Submit to gain access to the system.
If the user has not registered to be a member, he can do so by clicking on the Membership link which will take him to the online membership form. The user will have to
· Click on the link Membership or Join here
· Fill out all the data fields’ in the form and click Submit.
· The system will register the user as a member and go back to the main page from where the member can now log in to access statistical analysis by entering his username and password and clicking on the Submit button.
Note: A login form is provided on all the pages of the website to enable the member to perform analysis.
If the member enters an invalid user name or password, the system does not allow the user to login and displays a message that the login has failed and prompts the user to login again.
2.2 Analysis
On successfully logging into the system, the member is directed to the webpage where he can select the analysis he wishes to perform. The research questions and the corresponding test are displayed on the page. The member has to click the Analyze button to see the results of any particular test.
2.3 Results
Once the member has selected a test, the results are displayed in the form of a graphs or tables with all the statistical data. The output for each of the tests is given below:
· Simple Linear Regression
· Hypothesis test
· Correlation
· Chi-Square test
3. System Configuration
Oracle Database Server is used for storing all the persistence data such as the data pertaining to the members that they enter into the system when they register..
Sun ONE Application Server 7.0 is used as J2EE container which includes EJB Server and Web Server to maintain Enterprise JavaBeans and Web components.
For Client, the hardware requirement is at least Intel Pentium III 300 Mhz or 1.0 Ghz Athlon which has at least 256 MB RAM and has at least 200 MB freed hard disk space.
To run the application, Netscape Navigator and Microsoft Internet Explorer versions that support Java Script and Java applets are required.