A national poll of 549 teenagers (aged 13 to 17) by the Gallop poll
Chapter 3, Problem 3.176(choose chapter or problem)
A national poll of 549 teenagers (aged 13 to 17) by the Gallop poll (http://gallup.com/content/ default.aspx?ci=17110), April, 2005) indicated that 85% think that clothes that display gang symbols should be banned at school. If teenagers were really evenly split in their opinions regarding banning of clothes that display gang symbols, comment on the probability of observing this survey result (that is, observing 85% or more in a sample of 549 who are in favor of banning clothes that display gang symbols). What assumption must be made about the sampling procedure in order to calculate this probability? [Hint: Recall Tchebysheffs theorem and the empirical rule.]
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