In a 2014 Consumer Reports article titled, The High Cost of Cheap Chicken, the magazine reported that
Question:
In a 2014 Consumer Reports article titled, “The High Cost of Cheap Chicken,” the magazine reported that out of 316 chicken breasts bought in retail stores throughout the United States, 207 contained E. coli bacteria.
a. Find and interpret a 99% confidence interval for the population proportion of chicken breasts that contain E. coli. Can you conclude that the proportion of chicken containing E. coli exceeds 50%? Why?
b. Without doing any calculation, explain whether the interval in part a would be wider or narrower than a 95% confidence interval for the population proportion.
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Step by Step Answer:
a The sample proportion is 207316 0655 The standard error ...View the full answer
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Related Book For 
Statistics The Art And Science Of Learning From Data
ISBN: 9780321997838
4th Edition
Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg
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