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according to the stern marketing group, 9 out of 10 professional women say that financial planning...

according to the stern marketing group, 9 out of 10 professional women say that financial planning is more important today than it was five year ago. where do these women go for help in financial planning? forty-seven percent use a financial advisor (broker,tax consultant, financial planner). twenty-eight percent use written sources such as magazines, books, and newspapers. suppose these figures were obtained by taking a sample of 470 professional women who said that financial planning is more important today than it was five years ago.

a. construct a 95% confidence interval for the proportion of professional women who use a financial advisor. use the percentage given in this problem as the point estimate

b. construct a 90% confidence interval for the proportion of professional women who use written sources. Use the percentage given in this problem as the point estimate

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