Gregory is the owner of two clothing stores. He sells a variety of styles of clothing, but in general, he believes that having clothing with college logos in his stores would help people feel more school spirit. He is proposing an experimental study to examine his belief.

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  consider  the  following scenario,  then describe  how  you might conduct  a  study using  ansrs,  convenience sample, and a  voluntary response sample.  you  are  interested  in  parents'  opinion  of the  war  in  iraq.  your population  is  parents  of  high school students.  your question  is, "do you  believe that the  war  in