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Unhealthy Days in Cities The number of unhealthy days based on the AQI (Air Quality Index) for a random sample of metropolitan areas is shown.

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Unhealthy Days in Cities The number of unhealthy days based on the AQI (Air Quality Index) for a random sample of metropolitan areas is shown. Round the sample statistics and final answers to at least one decimal place. 27 5 50 6 15 3 23 21 14 5 Send data to Excel Construct a 90% confidence interval based on the data. Assume the variable is normally distributed.

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