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According to a 2009 Reader's Digest article, people throw away approximately 12% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 89 grocery shoppers to investigate their behavior. What is the probability that the sample proportion exceeds 0.2? Answer =______ (Enter your answer as a number accurate to 4 decimal places.)
According to a 2009 Reader's Digest article, people throw away approximately 11% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 75 grocery shoppers to investigate their behavior. What is the probability that the sample proportion exceeds 0.12? Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.
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 153 grocery shoppers to investigate their behavior. What is the probability that the sample proportion exceeds 0.13? 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.)
2)According to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 68 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.18? Note: You should keep at least 4 decimal places for any intermediate calculations you make to match wamap's approach and calculations. Answer = (Enter your answer as a number accurate...