An organization advocating for health care reform has estimated the average cost for health care of a senior citizen receiving Medicare to be about $13,000 per year. At the end of the article it was stated that, with 90% confidence, the margin of error for this estimate is $1,000. What is the resulting 90% confidence interval for the average cost for health care of a senior citizen receiving Medicare? O ($12,000 , $13,000) O ($12,000 , $14,000) ($13,000 , $14,000) O ($12,500 , $13,500)

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