According to a 2009 Reader's Digest article, people throw away about 8% of what they buy at the grocery store. ASsume this is the true proportion and you plan to randomly survey 152 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.12? Answer = |(Enter your answer as a number accurate to 4 decimal places.)

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
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 about 8% of what they
buy at the grocery store. Assume this is the
true proportion and you plan to randomly
survey 152 grocery shoppers to investigate
their behavior. What is the probability that
the sample proportion does not exceed
0.12?
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 about 8% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 152 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.12? Answer = (Enter your answer as a number accurate to 4 decimal places.)
A manufacturer knows that their items have
a normally distributed lifespan, with a mean
of 14.8 years, and standard deviation of 4.6
years.
The 2% of items with the shortest lifespan
will last less than how many years?
Give your answer to one decimal place.
Transcribed Image Text:A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.8 years, and standard deviation of 4.6 years. The 2% of items with the shortest lifespan will last less than how many years? Give your answer to one decimal place.
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