A flu outbreak hits your school on Monday. with 20 students who are sick that get sent home. The number
of infected students increases by 25% per hour.
How many students will be sick after 6 hours?

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.