29. Ozone. The Environmental Protection Agency is
Chapter 27, Problem 29(choose chapter or problem)
29. Ozone. The Environmental Protection Agency is examiningthe relationship between the ozone level (in partsper million) and the population (in millions) of U.S. cities.Part of the regression analysis is shown. a) We suspect that the greater the population of a city,the higher its ozone level. Is the relationship significant?Assuming the conditions for inference aresatisfied, test an appropriate hypothesis and stateyour conclusion in context.b) Do you think that the population of a city is a usefulpredictor of ozone level? Use the values of bothand s in your explanation.
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