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    Probability: sample proportion

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    A producer of a juice drink advertises that it contains 10% real fruit juices. A sample of 75 bottles of the drink is analyzed and the percent of real fruit juices is found to be 6.5%. If the true proportion is actually 0.10, what is the probability that the sample percent will be 6.5% or less?


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    Solution Preview

    The correct answer is b. 0.1562

    If p = .10, the mean of p-hat, the sample proportion, is .10, and the ...

    Solution Summary

    This solution finds the probability that the sample proportion is less than or equal to a stated value, when a sample is selected from a population with a known population proportion.