Question 328043: 3. 3% of Americans surveyed lie frequently. Suppose you conduct a survey of 500 college students and find that 20 of them lie frequently. Compute the probability that, in a random sample of 500 students, at least 20 lie frequently, assuming the true percentage is 3%.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 3% of Americans surveyed lie frequently. Suppose you conduct a survey of 500 college students and find that 20 of them lie frequently. Compute the probability that, in a random sample of 500 students, at least 20 lie frequently, assuming the true percentage is 3%.
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Binomial Problem with n=500 and p = 0.03
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P(x=500) = 1 - binomcdf(500,0.03,19) 0.1214
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Cheers,
Stan H.
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