An airline is interested in determining the proportion of its customers who are flying for reasons of business. if they want to be 90% certain that their estimate will be correct to within 2 percent, how large a random sample should they select?

Which actions can you improve your credit score? (multiple can be selected)having a good credit score should be your prime objective as credit companies analyze your creditworthiness before giving you a loan. there are certain guidelines you can follow to ensure you have a good credit score. always pay your mortgage interest on time. if you are a student, make student loan inquiries before taking any loan. if you have multiple credit cards, manage them judiciously. maintain a healthy balance in your bank account.1. always pay your mortgage interest on time.2. if you are a student, make student loan inquiries before taking any loan.3. if you have multiple credit cards, manage them judiciously.4. maintain a healthy balance in your bank account.