2 5 points Save Answer Suppose a researcher is interested in the percentage of Kentucky coal miners who have developed lung disease during the course of their career and would like to calculate a 90% confidence interval. The researcher takes a simple random sample of 250 coal miners from Kentucky and finds that 175 have had lung disease during the course of their careers. Confirm that the assumptions are met, calculate a 90% confidence interval and interpret the interval. (Round your answer to 2 decimal places)