CASE STUDY: SHELL
DATE OF SUBMISSION: 25th March, 2015
SUBMITTED TO: MEENAKSHI RAWANI
SUBMITTED BY: GROUP NO.2: TORAL BHANSALI RONARK BHARDWAJ GAURAV CHORARIA RISHAB CHOUDHARY
Q1. Suppose you were asked to develop a sampling plan to determine what a “premiere company” is to the general public. What sampling method would you use? What is the target population? What would you use for a frame? Could you use a combination of two or more of the types? If so, how?
Ans.1
1) According to our group, Area sampling is suitable and could be used to determine what a premier company is to general public.
2) The target population would be the population owning a vehicle.
3) The frame to decide the sample would be the office that issues the licenses and the vehicle registration offices.
4) For combination, we can use stratification in the particular area cluster, based on age, gender, class, etc.
Q2. It appears that at least one of the research companies hired by Shell used some stratification in their sampling. What are some of the variables on which they are stratified? If you were truly interested in ascertaining opinions from a variety of segments of the population with regard to opinions on “premiere” companies or about Shell, what strata might make sense? Name at least five and justify why you would include them.
Ans. 2
The research company has stratified the sample on the basis of youths, minorities, residents in neighborhoods near Shell plants, legislators, academics and present and past employees of Shell. The variables used are age, class, occupation and students.
According to our group, we would divide the strata for the opinion in premier company on the basis of:
Age- in order to know which age category uses the services of the premier company. The age category will be divided into youth (up to 25years), mid age (from 26years to 60 years) and older age people (60 years and above).