Identify relevant parameter of interest for qualitative data

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Reference no: EM131460890

Question: A survey by the AARP (Money, June 2007) reported that approximately 70% of people in the 50 to 64 age bracket have tried some type of alternative therapy (for instance, acupuncture or the use of nutrition supplements). Assume this survey was based on a sample of 400 people.

a. Identify the relevant parameter of interest for these qualitative data and compute its point estimate as well as the margin of error with 90% confidence.

b. You decide to redo the analysis with the margin of error reduced to 2%. How large a sample do you need to draw? State your assumptions in computing the required sample size.

Reference no: EM131460890

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