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Yui101:
What is the standard error of the proportion if 80% of the 1,200 respondents in a yes/no survey answered "no"? 3.46% 2.31% 1.15% 2.58% 1.29%
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mikewwe13:
Sample proportion = p = 80% = 0.8 Standard error of p = sqrt [p*(1-p)/n] = sqrt [0.8*0.2/1200] = 0.0115 or 1.15% Therefore, CHOICE (C) is the answer
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