9) Ten different families are tested for the number of gallons of water a day they use before and after viewing a conser
Posted: Wed May 11, 2022 10:57 am
9) Ten different families are tested for the number of gallons of water a day they use before and after viewing a conservation video. Construct a 90% confidence interval for the mean of the differences. Before 33 33 38 33 35 35 40 40 40 31 After 34 28 25 28 35 33 31 28 35 33 A) 3.8 < d < 5.8 B) 1.8 < d <7.8 C) 1.5 < d < 8.1 D) 2.5 < d < 7.1