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According to the Mortgage Bankers Association, 10.73% of prime fixed-rate mortgages were in foreclosure or delinquent in the United States during the first quarter of 2010. To validate this claim, a random sample of 700 mortgages was selected, of which 98 were in foreclosure or delinquent

a. Using a 90% confidence interval, does this sample support the findings of the Mortgage Bankers Association?

b. What is the margin of error for this sample?

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