At 03:14 PM 3/12/02 +0100, George wrote: >from a past exam, I have the following question: > >Which type of sample survey would provide the most reliable data on the >frequency of cinema-going of the population? > >only one of 1,2,3,4 is "correct": > >1) A house to house survey in the evening >2) A postal survey based on the electoral list >3) Interviewing outside the cinema >4) A household survey based on a population census or register
i say 3 ... though it does not specify what cinema, how many, nor when ... BUT, you do have actual people who are going TO the cinema ... which we cannot necessarily say when we talk to people at home ... or via a postal survey actually, i don't think there is any really correct answer ... for each choice, there are many unknowns and which would be a bigger factor in making it a good choice would all depend on the clarification of those unknowns ... Dennis Roberts, 208 Cedar Bldg., University Park PA 16802 <Emailto: [EMAIL PROTECTED]> WWW: http://roberts.ed.psu.edu/users/droberts/drober~1.htm AC 8148632401 . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
