Statistics and Probability Quiz
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A city library wants to estimate the population parameter p, the proportion of all adult visitors who check out at least one book. A random sample of n=150 adult visitors is taken, and the sample statistic is p^=0.46.
Students use a simulation: they repeatedly take 2000 random samples of size 150 from a model centered at 0.46 and look at the simulated sample proportions. They observe that the middle 95% of simulated p^ values runs from 0.38 to 0.54.
What margin of error is supported by this simulation for estimating the population parameter p?
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