An insurance company handling malpractice cases is interested in estimating the average amount of claims against physicians of a certain specialty. The company plans to select a large sample and calculate the sample average X. Suppose the insurance company decides to use $6,000 as the standard deviation on the amount of claims. Suppose the company selects a random sample of 36 cases. The width of a 95% confidence interval for the average amount of claims is closest to
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