Answered: Consider the following four studies…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Consider the following four studies below and then match them accordingly to their sampling type. Study 1: Henrietta manages a movie theater that recently completed a remodel. She would like to learn what her customers think about it. So she decides to give every 20th person that enters the theater a survey that asks them their opinion of the remodel. Study 2: Suppose a research team wants to determine the average GPA of college students in the U.S. They choose to have their sample represent the target population in terms of major and know from a different study that 12% majer in English, 28% major in science, 15% major in computer science, 21% major in engineering, 5% major in mathematics, 10% major in the arts, and the remaining 9% have a different major. In their sampling procedure they are careful to make sure that their sample has these exact percentages, in terms of major, by performing a simple random sample within each of these subgroups. Study 3: A raffle takes place where attendants are each handed a single ticket number that is placed into a bag and certain prizes are given to the people whose ticket numbers are drawn. Study 4: A raffle takes place where attendants are able to buy as many tickets as they would like--each with a number-- that is placed into a bag and certain prizes are given to the people whose ticket numbers are drawn Study 4: Study 3: Study 3: Study 1: Choices: Stratified Random Sample Other Systematic Random Sample Simple Random Sample