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What is the probability of sample proportion

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Reference no: EM131456346

Question: The Food Marketing Institute shows that 17% of households spend more than 5100 per week on groceries. Assume the population proportion is p = .17 and a simple random sample of 800 households will be selected from the population.

a. Show the sampling distribution of P¯ . the sample proportion of households spending more than S100 per week on groceries.

b. What is the probability that the sample proportion will be within -1-.02 of the population proportion?

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

Reference no: EM131456346

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