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Economic data is an important part of economic planning. One economic data tool, the GDP growth estimator, has a known population standard deviation of 0.295

Economic data is an important part of economic planning. One economic data tool, the GDP growth estimator, has a known population standard deviation of 0.295 points. For the March GDP growth estimation survey, a sample of 38 companies had sample mean GDP growth of 0.862 points. In a 99% confidence interval, what is the margin of error for population GDP growth? Round to 3 decimal places

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