Question

The Grocery Manufacturers of America reported that 76% of consumers read the ingredients listed on a product’s label. Assume the population proportion is p = .76 and a sample of 400 consumers is selected from the population.
a. Show the sampling distribution of the sample proportion ṕ where ṕ is the proportion of the sampled consumers who read the ingredients listed on a product’s label.
b. What is the probability that the sample proportion will be within ± .03 of the population proportion?
c. Answer part (b) for a sample of 750 consumers.



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  • CreatedFebruary 16, 2015
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