Name:- Rohith Emmanuel

Roll Number: 14043

Group B(Operations Batch)

Today’s class was on the aspects of the program SPSS (statistical package for the social sciences), although developed for the purpose of statistical data of social relevance, we would be using the program to understand the business implications of the data provided .The software is a very useful tool in analysis of information from the gathered data and its functionalities are plenty with the range of statistical tabs available. SPSS is a comprehensive and flexible statistical analysis and data management solution. SPSS can take data from any type of file and generates charts, tables, reports etc. Today’s the class delved into the introductory module of the SPSS software package with a simple example of a “survey of an American society” (data already provided with the software) and understanding the functions –cross tabulations and frequencies.

The frequency tab was an easy method and a great advantage over the excel counterpart in extracting information from the entire data provided about the frequency of relevant parameters.

The cross tabulations tab is used to understand the relations between various parameters .In the above example taken in class simple study was done to understand the reason why first time marriages occur below the age of 21 and this tab allowed us to make a hypotheses on the reason for the same and allowed us to compare and measure the frequencies required of the two parameters in question. For eg. Group B hypothesised that the reason for the above might be due to the fact that lots of people oppose sex education in school .After having cross tabulated both the parameters(number of people opposing sex ed in school and early marriage people ),  a Pearson’s chi-square test is done to measure the test for independence and it was found that the null hypothesis is valid or that the number opposing sex ed in school has no relation to the early marriage .Thus we tested a simple hypothesis , further  the Chi- square test can be also used for goodness of fit and similarly this software package gives a lot more applications which would be covered in the following classes.