On saturday, querida gave away 416 coupons for a free appetizer at a local restaurant. the next day, she gave away about 52 coupons an hour. is the number of coupons querida gave away in sunday proportional to the number of hours she worked that day? hours worked on sunday 1 -2 -3 4 coupons given away on sunday.

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.