Of 570 broiler chickens purchased from various kinds of food stores in different
ID: 3059392 • Letter: O
Question
Of 570 broiler chickens purchased from various kinds of food stores in different regions of a country and tested for types of bacteria that cause food-borne illnesses, 71% were infected with a particular bacterium.
a) Construct a 99% confidence interval.
b) Explain what your confidence interval says about chicken sold in the country.
c) A government spokesperson claimed that the sample size was too small, relative to the billions of chickens slaughtered each year, to generalize. Is this criticism valid?
Explanation / Answer
Of 570 broiler chickens purchased from various kinds of food stores in different regions of a country and tested for types of bacteria that cause food-borne illnesses, 71% were infected with a particular bacterium.
a) Construct a 99% confidence interval.
b) Explain what your confidence interval says about chicken sold in the country.
c) A government spokesperson claimed that the sample size was too small, relative to the billions of chickens slaughtered each year, to generalize. Is this criticism valid?