Anton bought a picnic cooler. His total bill, with tax, was $7.95, He paid 6 percent sales tax. How much did he pay for the cooler
alone without the tax?

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.