Question: =+39. Ozone, again. Using a statistics program, consider again the relationship between the population and ozone level of U.S. cities that you analyzed in Exercise

=+39. Ozone, again. Using a statistics program, consider again the relationship between the population and ozone level of U.S. cities that you analyzed in Exercise 37.

a) Give a 90% confidence interval for the approximate increase in ozone level associated with each additional million city inhabitants.

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