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The Food Marketing Institute shows that 17 of households spend

The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population proportion is p = .17 and a sample of 800 households will be selected from the population.

a. Show the sampling distribution of ṕ, the sample proportion of households spending more than $100 per week on groceries.

b. What is the probability that the sample proportion will be within ±.02 of the population proportion?

c. Answer part (b) for a sample of 1600 households.

a. Show the sampling distribution of ṕ, the sample proportion of households spending more than $100 per week on groceries.

b. What is the probability that the sample proportion will be within ±.02 of the population proportion?

c. Answer part (b) for a sample of 1600 households.

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