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An architect considers that houses currently have a built-up area lower than two or more decades ago. In a sample of 150 homes built in

An architect considers that houses currently have a built-up area lower than two or more decades ago. In a sample of 150 homes built in the Over the last two years, an average built area of 92 square meters was found. square meters and a standard deviation of 30 square meters. Get an interval of 95% confidence for the built area of new homes.

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