A recent AP biology test asked ”Charles Darwin is most often associated with which scientific theory?” , 55% of respondents correctly answered Evolution or natural selection. Suppose we sample n = 1, 018 test-takers randomly. • Identify the population, the sample, and the sample statistic. • What is the mean and standard deviation of the sampling distribution? • Find the cutoff for the lowest 0.15% of sample proportions. • Find the cutoffs for the middle 99.7% of sample proportions.

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  1. A recent AP biology test asked ”Charles Darwin is most often associated with which scientific theory?” , 55% of respondents correctly answered Evolution or natural selection. Suppose we sample n = 1, 018 test-takers randomly.

    • Identify the population, the sample, and the sample statistic.
    • What is the mean and standard deviation of the sampling distribution?

• Find the cutoff for the lowest 0.15% of sample proportions.

• Find the cutoffs for the middle 99.7% of sample proportions.

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