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A. A survey of 1283 student loan borrowers found that 428 had loans totaling more than $20,000...

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Statistics

A.A survey of 1283 student loan borrowers found that 428 had loanstotaling more than $20,000 for their undergraduate education. Givea 99% confidence interval for the proportion of all student loanborrowers who have loans of $20,000 or more for their undergraduateeducation

B. In a study of the relationship between pet ownership andphysical activity in older adults, 598 subjects reported that theyowned a pet, while 1922 reported that they did not. Give a 99%confidence interval for the proportion of older adults in thispopulation who are pet owners.

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