Mrs. Nez owns a small business. When her customers pay with a credit card, she receives 95.8% of the charged amount from the credit card company. If customer makes a $20 purchase, how much will Mrs. Nez receive from the credit card company?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.