Sampling Techniques for Determining the Proportion of Males at UNC - Prof. Vasil Maroulas, Assignments of Statistics

Download Sampling Techniques for Determining the Proportion of Males at UNC - Prof. Vasil Maroulas and more Assignments Statistics in PDF only on Docsity! Statistics - OR 155, Section 2, Homework Class Problem 8 Due: Thursday, February 15, 2007 Name:_________________________________________________ Goal: Try out various ways of sampling to determine the proportion of males at UNC. For each type, gather your own sample of 25, report on this sheet the sample proportion, and write down the sample proportion somewhere else for later use. 1. The 25 people sitting closest to you in class. Fill out the following worksheet with M's and F's for the 25 closest people. ____ Number of MALES ____ Sample percentage of MALES 2. Stand at a doorway and tally the first 25 people that walk through (You choose the doorway here, OK to be crazy like door to a men's dormitory, or you may want to try as hard as you can to pick a "representative door"). Use the tally sheet below. Males: _________________________________ Females:_____________________________ ____ Number of MALES ____ Sample percentage of MALES 2