An air pollution index (from 1 to 25, with 25 being the most serious pollution) takes into account t
Question: An air pollution index (from 1 to 25, with 25 being the most serious pollution) takes into account the amount of carbon monoxide in the air. A random sample of 40 readings taken one hour before sunset had a sample mean index reading of 11.3 with a sample standard deviation of 3.5. Find a 99% confidence interval for the population mean index rating.
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Solution: The answer consists of 1 page
Solution Format: Word Document![](/images/msword.png)
Solution Format: Word Document
![](/images/msword.png)