(Choose 1 answer)
(See picture)
A. None of the other choices is correct
Β. (0.125, 0.335)
C. (0.128, 0.332)
D. (-0.014. 0.474)
Ε. (0.144, 0.316)
Two machines are used to fill plastic bottles with dishwashing detergent. The fill volume can be assumed normal, with standard deviation \sigma_{1}=0.15 fluid ounces and \sigma_{2}=0.20 fluid ounces for machine 1 and machine 2, respectively. Two random samples of n_{1}=20 bottles from machine 1 and n_{2}=25 bottles from machine 2 are selected, and the sample means are \overline{x}_{1}=30.85 fluid ounces and \overline{x_{2}}=30.62 fluid ounces. Construct a 95% two-sided confidence interval for the difference in mean fill volumes of two machines.
Let 0.025 1.96, z_{005}=1.645, 10.025,43 =2.017, 10.05.43 =1.681
an tot ni
Exit (34
