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[Solved] Researchers have estimated that office workers in Germany receive an average of 15 fax messages per day. This finding is based on a simple random

Question: Researchers have estimated that office workers in Germany receive an average of 15 fax messages per day. This finding is based on a simple random sample of 80 German workers with a standard deviation of 3.5 messages. Construct and interpret the 99% confidence interval for the population mean. Given this confidence interval, would it seem very unusual if another sample of this size were to have a mean of 16.5 faxes?

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