Dobytheshark2731 Dobytheshark2731
  • 11-07-2020
  • Mathematics
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When 440 junior college students were surveyed, 200 said they have a passport. Construct a 95% confidence interval for the proportion of junior college students that have a passport.

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SinnerTae
SinnerTae SinnerTae
  • 11-07-2020
sample proportion: 190/425 = 0.45
ME = 1.96*sqrt[0.45*0.55/425] = 0.047
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95% CI: 0.45-0.047 < p < 0.45+0.047
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