A study by Stanford University researchers for the Office of National Drug Control Policy and the Department
Question:
a. Use the results of this sample to estimate the proportion of all films that involve drugs, drinking, or smoking.
b. What is the 95% confidence interval?
c. Do you believe that the top 400 films represent a random sample? Explain.
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a The sample proportion 098 b The margin of err...View the full answer
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Related Book For
Statistical Reasoning for Everyday Life
ISBN: 978-0321817624
4th edition
Authors: Jeff Bennett, Bill Briggs, Mario F. Triola
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