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An economist is interested in studying the incomes of consumers in a particular country. The population standard deviation is known to be $1,000. A random sample of 100 individuals resulted in a mean income of $15,000. What is the width of the 90% confidence interval? A) $232.60 ( B) $728.60 C) $328.97 OD) $164.50 Please check your response. Ensure that each response is marked as saved before moving forward. Please submit when you are finished with the entire quiz