In science class, students water a plant with the same amount of water each day for 28 consecutive days. if the students use a total of 23.8 liters of water over the 28days ,how many liters of water did they use each day? how many milliliters did they use each day?

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.