mamCand8mtbell mamCand8mtbell
  • 04-11-2016
  • Mathematics
contestada

What is the standard error of the proportion if 80% of the 1,200 respondents in a yes/no survey answered "no"?

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alsteva alsteva
  • 10-11-2016
standard error for a sample proportion, p = 0.8, n = 1200

[tex]SE= \sqrt{ \frac{p(1-p)}{1200} } = \sqrt{ \frac{0.8(1-0.8)}{1200} } \approx 0.015 \times 100\%=1.15\%[/tex]
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