According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 67 grocery shoppers to investigate their behavior. What is the probability that the sample proportion is between
According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 67 grocery shoppers to investigate their behavior. What is the probability that the sample proportion is between
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 67 grocery shoppers to investigate their behavior. What is the probability that the sample proportion is between 0.07 and 0.08?
Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.
Answer = (Enter your answer as a number accurate to 4 decimal places.)
Transcribed Image Text:According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at the
grocery store. Assume this is the true proportion and you plan to randomly survey 67 grocery shoppers to
investigate their behavior. What is the probability that the sample proportion is between 0.07 and 0.08?
Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach
and calculations.
Answer =
(Enter your answer as a number accurate to 4 decimal places.)
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