Note that the book states to use a value of 25% if you don’t
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Note that the book states to use a value of 25% if you don’tknow what a good value is for the population estimate. Would wewant to use this value in planning election polling? Why or whynot? What would be the sample sizes needed to get a 95% confidenceinterval of plus or minus 3% given that the initial estimate of thepopulation proportion is either 1%, 25%, 50%, 75% or 99% (calculatethe five intervals). What do you notice that is interesting?
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aFor p 001 005From Table critical values of Z 196e 003Sample Size n is given bybFor p 025 005From
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