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Mean proportion of individuals is p=0.30, sample size is 25 from this population, what fraction will have a sample porportion of 0.20 or lower?
hi cassrlWelcome to the forum.I see you have posted several questions that involve the normal distribution. I have just written out some background on this for another poster and he was able to get the right answer.You might find it helpful to view his post:http://www.mathisfunforum.com/viewtopic.php?id=18183The help for Q3 starts at post number 17.Bob
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