Re: Survey Sampling Design

Posted by Hans Chen on Oct 21, 2011; 2:33pm
URL: http://spssx-discussion.165.s1.nabble.com/Re-Survey-Sampling-Design-tp4924945.html

Dear Lister
 
Numerous visitors and customers visit our business center for shopping and sightseeing each day and we have installed a camera system to record the times of the door open and door close (we call it door count). Unfortunately, this number is not exactly what we want due to following reason:
 
·         Numerous employees are working inside the business center. Once they enter and exit the building, they are counted, which make door count inflated.
·         When people enter the building in group, they are just counted as 1
·         ….
We know how many times the door have been opened/close each day, but we want to find out actually how many people enter/exit the building. Is that possible to conduct sampling to get a coefficient and adjust the dour count using the coefficient to get the number of victors, and how can we conduct such a sampling? Any suggestion will be highly appreciated.

Han Chen