A politician claims that the average UAE resident is more than 20 pounds overweight. To test his claim, a random sample of 20 UAE residents was weighed, and the difference between their actual and ideal weights was calculated. The data are listed below. Do these data allow us to infer at the 5% significance level that the politician's claim is true?
16 23 18 41 22 18 23 19 22 15
18 35 16 15 17 19 23 15 16 26