A consumer organization suspects that less than half of parents know their childs cell-phone password. The Pew
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A consumer organization suspects that less than half of parents know their child’s cell-phone password. The Pew Research Center asked a random sample of parents if they knew their child’s cell-phone password. Of the 1060 parents surveyed, 551 reported that they knew the password. Explain why it isn’t necessary to carry out a significance test in this setting.
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